company name	Sirius Satellite Radio
company logo
company type	Division of Sirius XM Radio
company slogan	The Best Radio on Radio
foundation	March 12, 2001 (as Sirius Radio)May 17, 1990 (as Satellite CD Radio, Inc.)
location	New York City, New York, United States
num employees	1514 (2010)
industry	Broadcasting – Radio
products	Satellite radio
revenue	US$1.66 Billion (''FY 2008'')
operating income	US$-5.03 Billion (''FY 2008'')
net income	US$-5.31 Billion (''FY 2008'')
assets	US$7.49 Billion (''FY 2008'')
equity	US$8.54 Million (''FY 2008'')
parent	Sirius XM Radio
homepage	www.siriusxm.com }}

Sirius Satellite Radio is a satellite radio (SDARS) service operating in the United States and Canada, owned by Sirius XM Radio. Headquartered in New York City, with smaller studios in Los Angeles and Memphis, Sirius was officially launched on July 1, 2002 and currently provides 69 streams (channels) of music and 65 streams of sports, news and entertainment to listeners. Music streams on Sirius carry a wide variety of genres, broadcasting 24 hours daily, commercial-free, and uncensored. A subset of Sirius music channels is included as part of the Dish Network satellite television service. Sirius channels are identified by Arbitron with the label "SR" (e.g. "SR120", "SR9", "SR17").

Its business model is to provide pay-for-service radio, analogous to the business model for premium cable television. Music channels are presented without commercials while talk channels, such as Howard Stern's Howard 100 and Howard 101 and Opie and Anthony's The Virus, do have regular commercials. At approximately 6 minutes per hour, the number of commercials are still less than the average on terrestrial radio or television. Furthermore, all channels are free from FCC content regulation, thus songs are played unedited for language, and talk programs may feature explicit content if they wish. Subscriptions are prepaid and range in price from US$12.95 monthly (US$8.99 for each additional receiver) to US$499.99 for lifetime (of the receiver equipment) subscription. There is a US$15 activation fee for every radio activated. Sirius announced it had achieved its first positive cash flow quarter for the period ending December 2006.

Sirius was founded in July 1990 by Martine Rothblatt as Satellite CD Radio, Inc.. In that month she also petitioned the Federal Communications Commission (FCC) to create a Satellite Digital Audio Radio Service in an underutilized portion of the 2300 MHz frequency band. Her vision was to adapt GPS patch antennas to a national, digital, radio service, for which she claimed in her Petition for Rulemaking that there was a large, unmet public need. Rothblatt first demonstrated the service via terrestrial emulators of a satellite to FCC officials in 1992 outside the offices of WPFW in Washington, DC. In that year her daughter was diagnosed with life-threatening pulmonary arterial hypertension, and she resigned as Chairman & CEO to focus on finding a cure for the medical condition. She selected David Margolese to succeed her, and he subsequently venture capitalized $20 million over the next five years lobbying the Federal Communications Commission to allow satellite radio to be deployed.

In 1999, Marketing Chief, Ira Bahr, developed and championed the name "Sirius". Margolese was reluctant to re-name the company, but Bahr convinced him the current name "CD Radio" did not work well. Margolese wanted to use the name "Orbital" but it was unavailable, and he acceded to Bahr's name.

Sirius launched its radio service in four states on February 14, 2002, expanding service to the rest of the contiguous U.S. by July of that year.

On October 16, 2006, Sirius announced that it would be launching Sirius Internet Radio, with 78 of its 135 channels being available worldwide on the internet to any of its subscribers with a valid user name and password.

On July 29, 2008, Sirius formally completed its merger with former competitor XM Satellite Radio. The combined company began operating under the name Sirius XM Radio. On November 12, 2008, Sirius and XM began broadcasting with their new, combined channel lineups.

As of December 31, 2008, Sirius XM had a total of 19,003,856 subscribers.

Early Days of Sirius

Sirius was founded by satellite industry veteran Martine Rothblatt in 1990 as Satellite CD Radio, but changed its name to CD Radio in 1992, and to Sirius on November 18, 1999. Rothblatt had previously co-founded the PanAmSat international satellite television system and launched the Geostar satellite navigation system. In late 1992 she resigned as Chairman & CEO to start a medical research foundation for the benefit of a daughter who was diagnosed with a life-threatening disease. She selected David Margolese, a co-founder of Rogers Wireless, to succeed her. He raised and spent over $20 million lobbying the Federal Communications Commission to allow satellite radio to be deployed. Opposition from traditional broadcasters was fierce and the process took until 1997, at which time the FCC had moved to auctions rather than awards when licensing spectrum. The company then bid $83 million to successfully purchase one of two satellite radio licenses in an auction, both of which existed within the frequency band Rothblatt proposed in her July 1990 Petition for Rulemaking to the FCC.

After Margolese had run the regulatory steeplechase and effectively created the industry, the FCC also sold a license to XM Satellite Radio, which sailed along in Sirius's wake. Sirius then built and launched three satellites, constructed a coast to coast transmitter network for urban coverage, partnered with automakers to include satellite radios in their cars, and raised approximately $2 billion. This remains the largest amount of financing that a pre-operational start-up, with no proven market for its service, has ever raised. In 2001 Margolese stepped down as CEO, with Sirius issuing the following statement: "The Board warmly thanks David for his great vision, leadership and dedication in creating both Sirius and the satellite radio industry; as Chairman, we will continue to benefit from [his] strategic thinking." Joe Clayton, former CEO of Global Crossing, took the reins until Mel Karmazin, former President of Viacom, replaced him in 2004. Sirius acquired XM in 2008 and the company was re-named Sirius XM Radio.

Initially the company was truly at the forefront of technical achievements and innovation. The service availability goals, satellite configuration, were new and no prior standard allowed verification of the system. Its unprecedented satellite orbits and systems were developed by satellite industry legend, Robert Briskman. Even the studio layout and acoustics were developed from new techniques, where the audacity of glass walled studios was implemented. There was much press about initial delays, citing the company's chipset supplier as the cause, but nevertheless by Valentine's Day 2002, Sirius had put together a remarkable system, full of innovation, with excellent performance.

XM Satellite merger

On February 19, 2007, Sirius announced a merger deal with XM Satellite Radio. Upon government approval, the merger combined the two radio services and created a single satellite radio network in the United States, named SIRIUS XM Radio.

On March 24, 2008, the United States Justice Department approved the merger of Sirius and XM. The approval process for this merger was the longest in United States history. Approval from the Federal Communications Commission cleared on July 25, 2008.

One of the issues that the FCC has been called to resolve is the fact that, 10 years after initiating operations, both Sirius and XM have kept the United States' outlying states and territories in the dark. Rep. José E. Serrano, several members of the Outlying Areas Senate Presidents Caucus, headed by Senate of Puerto Rico President Kenneth McClintock and a resolution of the Puerto Rico Senate have called upon the FCC to require the merged company to offer service to the outlying areas of the US within a given timeframe as a condition for the merger.

As a result of Serrano and McClintock's efforts, Sirius made a written commitment in the FCC docket to offer service in Puerto Rico within three months of the merger approval. The application with the FCC for 20 additional repeaters in Puerto Rico was filed on October 27, 2008. Sirius XM was granted temporary authority for these repeaters in September 2009.

On July 25, 2008, after 17 months, the merger was approved in a 3–2 vote by the FCC. The companies voluntarily agreed to stipulations that include setting aside 8% of their channels for public interest and minority programming, 3 year price cap, as well as a A-La-Carte pricing available within 3 months of deal closure.

Content

Channels

''List of Sirius Satellite Radio stations''

According to a Spring 2007 Arbitron report, the five most listened to channels on Sirius based on their Average Quarterly Hour (AQH) Share are Howard 100, Howard 101, The Highway (60), Sirius Hits 1 and Octane (20).

Programming content

A major component of Sirius business strategy has been to execute far-reaching and exclusive deals with big-name entertainers and personalities to create and build broadcast streams, from the ground up. Sirius has reached extensive deals with domestic diva Martha Stewart, E Street Band member Steven Van Zandt, aka ''Little Steven'', Jimmy Buffett, and Eminem to executive-produce streams or entire channels on Sirius. Van Zandt was the first major musician recruited by Sirius or XM to create branded music channels and he has created two distinct stations for Sirius, the ''Underground Garage'' dedicated to garage rock, and ''Outlaw Country'' with its focus on alternative country music.

By far the largest of these deals was announced on October 6, 2004 when Sirius announced that it signed a five-year, US$100 million per year agreement with Howard Stern to move his radio show, The Howard Stern Show, to Sirius starting on January 9, 2006. The deal, which gave Sirius exclusive rights to Stern’s radio show, also gave Stern the right to build three full-time programming channels. Currently, Stern has two operating channels on Sirius, but still retains the right to a third. Stern said his move was forced by the stringent regulations of the FCC whose enforcement was intensified following the Super Bowl XXXVIII Halftime Show. Beginning with the announcement of his imminent departure, Stern complained Infinity Broadcasting was making his departure more acrimonious than was necessary.

Sirius presents an extensive array of programming on multiple channels that cover a wide variety of genres. The overall categories include: Music, News/Talk, Sports, Entertainment. Within each category there are multiple channels that present a wide variety of sub-genres. For example the Music category sub-divides into streams for Rock, Pop, Country, Hip-Hop/R&B;, Jazz/Blues – and within each stream there are channels for various sub-sections. An example of the variety of music offerings available would be the 22 channels playing different sub-genres of rock.

The vast majority of its programming is self-produced exclusively for Sirius. However, there are some shows—especially in the Talk genre—that are syndicated programs originally created for terrestrial radio that now air on traditional radio and Sirius simultaneously, for example, the ''Eternal Word Television Network'' which broadcasts on channel 160.

Among the hosts who present shows heard on Sirius, there are many high-profile personalities:

Sports figures such as seven-time Tour de France champion Lance Armstrong, NBA Hall of Famer Bill Walton, sports show host Scott Ferrall, fantasy football experts John Hansen and Adam Caplan from FantasyGuru.com, notable skateboarder Tony Hawk, skateboarder/MTV personality Bam Margera, and skateboarder Jason Ellis.

Musicians such as Joan Jett, Keith Morris of Black Flag, the B-52's lead singer Fred Schneider, Marky Ramone of The Ramones, and New York Dolls singer David Johansen.

Veteran deejays including: New York City DJ "Bruce Morrow", freeform radio pioneer Vin Scelsa, Richard Blade, Joe Causi and Kid Leo.

Original MTV veejays Mark Goodman, Nina Blackwood, Alan Hunter and Martha Quinn.

Hip Hop superstars including Eminem and 50 Cent along with legends like Grandmaster Flash, Kool DJ Red Alert, Kurtis Blow and DJ Premier.

Popular dance music artists and DJs like Paul Oakenfold, Paul Van Dyk, Liquid Todd, Pete Tong, The Riddler and DJ Icey.

Political commentators including Bill Press, Andrew Wilkow, Mike Church, Rusty Humphries, Mike Malloy, Lynn Samuels, Glenn Beck and Sean Hannity.

Comedians and satirists include Harry Shearer, Duane Cahill, Mojo Nixon, and Jim Breuer.

Entertainment such as Cosmo and Maxim Radio featuring Covino and Rich.

On November 18, 2004 the former COO and President of Viacom, Mel Karmazin, was named the CEO of Sirius. Stern worked under Karmazin at Infinity Radio and the two appeared to always have a great deal of mutual respect. It was Karmazin who fiercely protected Stern in the wake of the Super Bowl XXXVIII Halftime Show (produced by MTV and aired by CBS, both co-owned with Infinity-now CBS Radio-until CBS Corporation split off in 2006) and the FCC crackdown on shock jocks and obscenity, in general.

On October 25, 2005 Sirius announced that "E Street Radio", the exclusive channel of artist Bruce Springsteen, would air from November 1, 2005 to January 31, 2006 on the Bridge – Channel 10. On September 14, 2006, The Bridge was replaced again, by The Who Channel. This special limited-run channel was moved to channel 98, replacing Rolling Stones Radio, and the Bridge restored, on January 1, 2007, But was turned back into E Street Radio again on October 5, 2007.

Sports

Another cornerstone of Sirius’ business strategy has been to pursue exclusive sports content. Currently, Sirius has exclusive satellite radio broadcasting rights to all NFL, CFL and NBA games. Sirius also announced in December 2005 a multi-year deal with the NBA, which made the satellite radio company the broadcaster of more live NBA games than any other radio outlet. Sirius airs Full Court Press, weekdays from 12 pm – 3 pm ET; FCP is the only all-NBA show on Sirius. The agreement also created a 24-hour NBA Radio Channel, which was located on channel 127. However, as of November 12, 2008, NBA games have switched to XM and are therefore now part of Sirius as part of the "Best of XM" package and the 24-hour NBA channel no longer airs, replaced by Sporting News Radio. NHL games were shared with XM for the 2005–2006 season, and XM now holds exclusive rights. Sirius currently has full NASCAR coverage, including, among other programs, a two hour weekly show hosted by NASCAR driver Tony Stewart. In 2009, for the first time, it carried live coverage of the Le Mans 24 hour race from Radio Le Mans.

Sirius also has rights to a number of major college sports teams, including teams in the Big East, Big Ten and Southeastern Conferences as well as The University of Notre Dame. Beginning in 2005 Sirius also has exclusive radio rights to cover the NCAA Men's Division I Basketball Tournament. In August 2004, Sirius launched ''Sirius NFL Radio'', a 24-hour radio stream dedicated exclusively to covering the NFL. Sirius has also been aggressive in creating its own in-house produced studio sports radio content.

Sirius also has the only national Horse racing talk show, ''At the Races'', hosted by noted racing handicapper, Steve Byk. The show which airs weekdays between 4 and 7, is unique in the horseracing world.

''The Hardcore Poker Show'', Wednesday night at 8 p.m. (eastern), hosted by Rob Pizzo and Chris Tessaro, is the only syndicated poker talk show in North America.

Sirius also broadcasts select Premier League matches which generally air on Saturday and Sunday Mornings during the season, but there are occasional games on weekday afternoons. Continuing their major expansion of soccer coverage, Sirius announced a deal to add UEFA Champions League soccer to their lineup on September 27, 2006. As of recently Sirius also had exclusive radio rights to broadcast the ESPN television feed of the Euro 2008 championships. . Rounding out their coverage Sirius also airs a two hour soccer talk show on Wednesday nights on channel 125 called "The Football Show" with former Metrostars GM Charlie Stillitano and former International Italian star Giorgio Chinaglia. The show also airs on Tuesday evenings after UEFA Champions League Matches. On Saturdays and Sundays during premier league season, Sirius airs Radio 606, a classic radio call in show from the UK discussing all of the days top matches.

On September 15, Chris Russo launched his own show called ''Mad Dog Unleashed''.

As of March 2009, Major League Baseball games remain exclusive to XM Radio as a result of an arrangement dispute between MLB and Sirius XM. It is currently unclear if and when baseball games will be available to Sirius subscribers.

SIRIUS Music for Business

In August 2003, Sirius partnered with Clearwater, Florida-based Applied Media Technologies Corporation, a provider of telephone "on hold" messaging. AMTC provides Sirius service in a package branded as ''Sirius Music for Business''. For US$29.95 per month, AMTC provides all of Sirius' streams of commercial-free music, and pays all performance royalties to ASCAP, Broadcast Music Incorporated, and SESAC, so that business owners may legally play Sirius' music in their establishments.

Unlike the music services Muzak / DMX Music or Music Choice, the Sirius business music services use the same channels and SDARS delivery platform as the consumer Sirius service. The SDARS delivery platform, on the other hand, is more reliable than any of the other services in that it is not subject to satellite dish rain fade. Unfortunately, the highly elliptical orbit of the Sirius satellite constellation can pose difficulties for the reliable delivery of the signal to stationary antennas in certain parts of the country. To eliminate this potential problem, Sirius launched a new geostationary satellite, FM-5, to improve service to non-mobile customers such as those of Sirius Music for Business. The service can also be accessed online using Sirius' online streaming technology, allowing any business with a broadband Internet connection to overcome any potential reception issues. Additionally, Sirius is applying for repeaters in Hawaii and Alaska and has already been granted authority for 20 repeaters covering the island of Puerto Rico by the Federal Communications Commission (FCC).

Sirius Backseat TV

In March 2007, Sirius announced the upcoming availability of its first video service called "Backseat TV". In August 2007, the company revealed details of the first receiver, the SVC1, was originally offered exclusively through Chrysler OEM factory units. The service includes streaming video from three "family" television channels: Nickelodeon, Disney Channel and Cartoon Network Mobile. There will be a single screen (or a dual screen option in the Chrysler Town and Country and Dodge Grand Caravan) for back seat passengers to watch while front seat passengers have the option of simultaneously listening to any normal Sirius radio channel. The service is reported to cost an additional US$6.99 per month on top of the standard Sirius subscription price. The MSRP of the factory installed units is US$470 and the aftermarket unit has an MSRP of US$299.99. Both were made available in the fourth quarter of 2007.

Other content

In June 2005, Sirius signed an agreement with BBC Radio 1 in the UK to rebroadcast the station to an American audience. Sirius also has exclusive satellite radio rights to National Public Radio, carrying two separate streams (whereas XM's XM Public Radio channel carries only programming not produced by NPR, such as by PRI). The deal with NPR was the first high-profile deal entered into by Sirius. The Sirius NPR NOW (now available on XM) programming does not include the popular programs All Things Considered and Morning Edition.

With the launch of Sirius Canada in December 2005, American listeners gained five Canadian-produced stations including CBC Radio One, CBC Radio Three and Iceberg Radio, and ''Première Plus'', Énergie2, and ''Bande à part'' for French listeners. Iceberg Radio is programmed by Standard Broadcasting, which also provides a number of additional channels exclusive to Canada; the other four come from the Canadian Broadcasting Corporation. After a delay and outcry from Canadian subscribers, Sirius Canada added Howard Stern's Channel 100 to their lineup in early 2006. Channel 101, Stern's other channel (featuring Bubba the Love Sponge, Scott Ferrall, and other personalities), were made available in late June 2006.

Talk radio content recently added onto Sirius Satellite Radio include the ABC News and Talk channel 143(since having ceased operations), including live feeds of Sean Hannity and Larry Elder's syndicated radio shows, Patriot Talk channel 144 (which includes Michael Reagan's syndicated radio show) and Fox News Talk channel 145 (which includes syndicated radio hosts such as Alan Colmes and John Gibson).

On March 14, 2006, Sirius added Cosmo Radio, Playboy Radio, and returned the audio simulcast of the Fox News Channel TV feed, which was previously removed during a contract dispute. The service also added Fox's satellite talk radio channel, Fox News Talk.

In April 2003 Sirius launched Sirius OutQ, the first ever 24/7 talk channel designed for the LGBT audience. Personalities associated with the channel include Frank DeCaro, Michelangelo Signorile, Derek Hartley, and Romaine Patterson.

In addition to the audio programming, the Sirius broadcast stream also carries a ''Data Services'' channel that is utilized by capable receivers and graphical display hardware. Some of the data services offered are traffic speed and flow, marine weather, and fuel prices to name just a few. Examples of capable hardware are the Raymarine SR100 Satellite Weather receiver and the Alpine NVE-N872A Satellite Traffic Ready navigation system.

Exclusive channels

The Howard Stern Show aka Howard 100 and Howard 101

Iceberg Radio

CBC Radio 3

Rock Velours

Énergie2

Sports extra

Hardcore Sports Radio

Sports express

ESPN All Access

Radio Korea

NPR Talk

RCI +

CBC Radio One

The Weather Network Satellite Radio Service

Sporting News Radio

Technology

The Sirius signal is separated into three carriers, one each for the two satellites, and the third for the terrestrial repeater network where available. Sirius receivers decode all three 4 MHz carrier signals at once to achieve signal diversity. This is in contrast to XM which uses six carriers and decodes three 2 MHz carriers to economize on receiver power consumption and complexity at the cost of channel-changing speed. There is an intentional four-second delay between the two satellite carrier signals. This enables the receiver to maintain a large buffer of the audio stream, which, along with forward error correction, helps keep the audio playing in the event that the signal is temporarily lost, such as when driving under an overpass or otherwise losing line-of-sight of any of the satellites or ground repeater stations.

A third, separate signal is uplinked to the AMC-6 Ku-band satellite and received by satellite dishes for the ground repeater network. This third signal is broadcast on a third segment of the signal.

Signal architecture and early prototypes

The technology for Sirius Satellite Radio receivers as well as some of the uplink equipment, and the studio encoder, originated at Bell Labs in the late 1990s and subsequent years. The studio encoder was a result of Bell Labs efforts in statistical multiplexing of perceptual audio coded signals, a cousin of the MP3 standards. The waveform design for the terrestrial and satellite signals, as well as the early prototype receivers, were implemented in a FPGA logic and tested in the field to verify the performance of the receivers. This work was contracted by Sirius to Lucent Technologies, at the time a spinoff of AT&T.; Early prototypes were followed by a number of generations of ASIC custom designed chipsets, supplied at first by Agere Systems and later supplied by Agere Systems and their competitor ST microelectronics.

Three signals from three different sources (satellite, satellite, and terrestrial) are therefore combined in the receiver as radio signals, (not as audio signals). The three signals need to be combined constructively (avoiding situations where bad signals pollute good signals) in the receiver before being decoded. Heavy error correction is applied to the signals. All three signals contain the same audio content on all the channels that the receiver can receive, with the exception of one audio program waveform being transmitted ahead of the other two by approximately four seconds. With this time skew, the signals, once realigned, need to see an 8 second obstruction of overpass fade in order to lose audio content. This increases the robustness of the signal delivery in most driving conditions.

In order to recover meaningful signal and error free audio from a signal impaired by interference and fading, the receiver uses concatenated Reed-Solomon block coding and Forward Error Correction encoding and decoding (codec). This technique was proven in the early days of satellite modems in the late 1970s. Linkabit, then run by Ira Jacobs prior to his involvement with Qualcomm, offered such a codec for rack mounting in satellite earth stations. The Sirius signal uses more robust error correction on control channels than on the audio content, trading off error correction and bandwidth differently for separate categories of bits in the signal waveform.

The terrestrial carrier is a OFDM QPSK signal, cousin to WiMax and LTE, with the particular feature that more than one transmitter operates on the same frequency, forming a single frequency network. A number of transmitters can be placed around a city to create coverage that is less subject to fading than if a single transmitter were used. The satellite signal is QPSK. Both satellite and terrestrial signals have hierarchical modulation superposed on the original signal, a measure created to add bandwidth at a small expense in the satellite link budget for decoding the core audio content.

This architecture has worked remarkably well in avoiding drop out of audio signal when driving under highway overpasses, and when scintillating (very deep and frequent losses in signal strength caused by radio fading from trees) conditions exist. Since Sirius and XM separately entered the market with incompatible waveforms on the satellite, one would logically conclude that the merged company will eventually evolve the signal format again to take advantage of their size, but this is a speculative statement. The use of satellite and terrestrial combined service has been adopted by the DVB-SH standard, and companies such as ICO communications who cooperated with Alcatel-Lucent on system design and field trials. ONDAS, a Madrid based company, also adopted this pioneering system architecture.

Receiver technology

The receiver is designed to mitigate and retain signal quality in hostile signal conditions and the relatively weak signal levels from distant satellites. Because the satellites are not all geostationary they appear and disappear over the horizon. Terrestrial signals are present only in major cities to augment the satellite signals.

Approximately five chipset versions were built by Agere and approximately 4 versions were built by STMicroelectronics after the initial prototypes, although all of the early receivers included an Agere chipset known as Northstar. This platform enjoyed the highest volume of chipsets to date, representing the bulk of total production from 2002 to 2010. As of 2010, most of the chipsets are produced by STMicroelectronics.

At the heart of a Sirius receiver is a custom application specific integrated circuit (ASIC) chip called the ''Baseband Integrated Circuit'' currently the STA240, which is produced by STMicroelectronics. The chip contains embedded ARM7TDMI and ARM946E-S microprocessors synthesized from IP cores. Every baseband has a unique Electronic Serial Number (or Sirius ID). Another major section of a Sirius receiver is the tuner. The tuner is also a custom ASIC, the STA210. The tuner connects to the antenna, and receives the incoming satellite and terrestrial signals at 2.315 GHz and downconverts them to intermediate frequency signals at around 75 MHz. The strength of the signals is approximately −50dBm in clear-sky conditions. The IF signals are fed to the STA240, which are digitized, demodulated, error-corrected, de-interleaved, and decrypted using specialized circuits on the chip. The baseband processor utilizes a 16 MB SDRAM memory to buffer four seconds of one of the satellite signals in order to bring it into time coincidence with the other for Maximal-ratio combining. On newer receivers with a "pause" feature, a dual-port PSRAM is employed to store up to 60 minutes of the selected channel. The baseband processor outputs digital audio over a Serial Peripheral Interface, which is fed to a D/A converter to produce the analog audio signal. The front-end of a Sirius receiver is called the ''head unit'', required to display descriptive text (such as the category, channel, artist, and song name) and provide controls to the user. This is implemented by the third-party designers of Sirius-ready receivers, using a microprocessor of their choice.

Sirius offers car radios and home entertainment systems, as well as car and home kits for portable use. The Sirius receiver includes the antenna module and the receiver module. The antenna module picks up signals from the ground repeaters or the satellite, amplifies the signal and filters out any interference. The signal is then passed on to the receiver module. Inside the receiver module is a chipset consisting of eight chips. The chipset converts the signals from 2.3 gigahertz (GHz) to a lower intermediate frequency. Sirius also offers an adapter that allows conventional car radios to receive satellite signals.

Sirius broadcasts using 12.5 MHz of the S band between 2320 and 2332.5 MHz. Audio channels are digitally compressed using a proprietary variant of Lucent's Perceptual audio coder compression algorithm and encrypted with a proprietary conditional access system. Sirius has announced that they intend to implement hierarchical modulation technology to economize on bandwidth up to 25%.

Each receiver must be connected to an external antenna, which is included with the receiver. Antenna placement is crucial to receiving a clear signal. In some locations users have experienced difficulty receiving the Sirius programming because the signal is not consistently strong. For best reception, antennas should be placed such that they have an unobstructed view of the sky (preferably on rooftops without overhanging eaves or trees). If this is not an option, the antenna should be placed on an exterior wall. When placing on an exterior wall, the antenna should be mounted to a wall which faces the center of the continental United States in order to minimize the likelihood of the building itself blocking the signal.

Satellite technology

Sirius' satellites are named Radiosat because there is already a fleet of satellites named Sirius, launched by Sweden's NSAB (Nordiska Satellitaktiebolaget, or Nordic Satellite AB, and known today as SES Sirius) and used for general telecommunications and satellite television throughout Sweden and the rest of Scandinavia.

The current primary uplink facility for Sirius is located in Vernon, Sussex County, New Jersey. The original facility was located on the roof of the building housing the Sirius studios in Rockefeller Center in New York City but has since been decommissioned.

Sirius’ spacecraft Radiosat 1 through Radiosat 4 were manufactured by Space Systems/Loral. The first three of the series were orbited in 2000 by Proton-K Block-DM3 launch vehicles, with the final three-satellite constellation completed on November 30, 2000. Radiosat 4 is a ground spare, in storage at Space Systems/Loral’s facility in Palo Alto, California, ready to be launched if any of the three active satellites encounter transmission problems. The satellites are based on the Space Systems/Loral 1300 platform. All three satellites broadcast directly to the consumer's receiver, but due to the highly elliptical orbit only two of them broadcast at any given time.

Satellites Radiosat 1 through Radiosat 3 fly in geosynchronous highly elliptical orbit (Tundra orbit) in a 24-hour orbital period. The elliptical path of its satellite constellation ensures that each satellite spends about 16 hours a day over the continental United States, with at least one satellite over the country at all times. The orbit allows the satellites to broadcast from directly overhead the continental United States, avoiding the problem of large buildings or objects blocking the signal and requiring a much smaller terrestrial repeater network than does sister network XM.

On June 8, 2006, Space Systems/Loral announced that it was awarded a contract for the fifth Sirius spacecraft. The new spacecraft features a nine-meter unfurlable reflector. The first four Sirius spacecraft used more traditional parabolic reflectors. The new satellite has been designed for geostationary orbit, unlike the other satellites in the constellation; the different orbit has the stated purpose of allowing for more consistent reception for fixed location users (many subscribers have reported having to regularly reposition their antennas for optimal reception). Radiosat 5 is in a geostationary orbit at 96 degrees west. It was launched July 9, 2009, and announced to be in service as of September 9, 2009.

Future fleet

On February 29, 2008, the launch service provider International Launch Services (ILS) announced a contract which includes launch of the SIRIUS FM-6 satellite on a Proton Breeze M rocket. SIRIUS FM-6 is currently under construction at Space Systems/Loral. ILS anticipates the launch will take place in the fourth quarter of 2010.

Receivers

As of 2005, Sirius receivers are available for various new Audi, BMW, Chrysler, Dodge, Ford, Infiniti, Jaguar, Jeep, Land Rover, Lexus, Lincoln, Mazda, Mercedes-Benz, Mercury, MINI, Mitsubishi, Nissan, Scion, Toyota (except Corolla), Porsche, Volkswagen, and Volvo vehicles, and the service plans on adding availability for portable use. Subaru offers Sirius on the Forester and Impreza. Starting in 2006, all Rolls-Royce vehicles sold in the United States come with a Sirius radio and lifetime subscription as standard equipment. Sirius has an exclusive contract for VW and Audi vehicles from 2007 through 2012, and with Kia Motors from 2008 through 2014, with an optional extension to 2017. Beginning in the 2007 model year, Bentley vehicles will have Sirius as an option, and it will be standard equipment in several models beginning in 2008. Porsche switched to XM Satellite Radio on their vehicles beginning with the 2007 model year. Currently, only Toyota (including its Lexus and Scion divisions) and Subaru offer both Sirius and XM contracts.

Sirius also makes several receivers for aftermarket installations such as the Sportster4, Starmate Replay, Sirius S50 with built in 1 GB MP3 player, and the Sirius One.

Popular radios from Sirius:

Sportster 5 – plug and play radio with a color screen and one hour of storage

Sirius Stiletto 100 – the first portable Sirius radio that allows subscribers to listen to live Sirius programming. The Stiletto boasts a 2 gigabyte memory, which is roughly equivalent to 100 hours of recording time. The unit's batteries give the user approximately 30 hours of life. The unit also features Wi-Fi technology, which is used as a backup to stream music from the Internet when a clear signal strength is not readily available from the built-in antenna. Sirius' partnerships with Napster and Yahoo Music provide additional content for Stiletto users.

Sirius Stiletto 10 -The "feature"-lite version to the Stiletto 100. The Stiletto 10 offers all that the Stiletto 100 offers but does not offer Wi-Fi, MP3/WMA playback and only offers 256 megabytes of storage space (about 10 hours of Sirius programming). The Stiletto 10 offers Artist and Song Seek – Not featured on the Stiletto 100 or Stiletto 2. This seek function will watch for your favorite artists and songs that you want to hear and will let you know when they are playing on any other station.

Sirius Stiletto 2 – the newest portable Sirius radio. A slimmer, improved version of the Stilleto 100. Has microSD slot behind battery for storing MP3/WMA files and playlists (not Sirius content). Wi-Fi support expanded to handle WPA and WPA2 (non-Enterprise) with passcodes.

Sportster 3 was the first radio to use the new universal dock station.

Sirius S50 – the first portable Sirius radio – which is not a LIVE portable, it has to be plugged in to a home or car dock where content can be downloaded for later listening. The RIAA through its efforts to amend the Audio Home Recording Act and its lawsuit against XM Radio has crippled the S50 as it tried to limit the number and quality of downloads available to consumers.

Sirius Starmate ST1 (note: ST1C is the Canadian version)

Sirius Starmate Replay ST2

Sirius Sportster Exec. Docking Station Package

Sirius Sportster Radio with Boombox Package

Tivoli Sirius Table Radio

Kenwood H2EV Radio with Car and Home Kits

Clarion Calypso Sirius Radio with Car Kit

XACT XTR1 Radio with Car Kit

SiriusConnect for Pioneer SIR-PNR1 which can be modified to provide a Serial or USB Serial interface to control the radio.

On-line media streaming options

For an additional fee, Sirius subscribers are also able to access all of the proprietary music channels and most of the talk stations via streaming media through Sirius.com. A standard 64 kbit/s and "Premium" 128 kbit/s feed are available; the latter costs an additional $12.95 fee per month.

Alternatives to the browser based player are available such as a Yahoo! Widget (designed to look like a miniature Sportster model receiver), and SIRIUS Internet Radio Player (based on Windows Media Player and available as plug-in or standalone application). Both alternatives are gaining popularity with streaming listeners, and offer artist and track name information updated in real time, which is an improvement from the online Sirius player.

Recently, SiriusXMStream has come available as a replacement to Usirius. It offers a server capaility to stream sirius and xm programming to game consoles and mobile phones as an alternative to the iPhone And Blackberry app.

NiceMac LLC, creator of the StarPlayr and StarLightXM product lines have created clients for Mac, PC, Windows Mobile and iPhone. The company recently merged with Jason Millard of Millard Software and plans to release uSirius StarPlayr, a Sirius XM iPhone client in 2009.

CatPig Studios Inc. has also released Radium for Mac, a general-purpose internet radio player that supports XM and Sirius. In early 2010, Rogue Amoeba software released Pulsar, a standalone Sirius-XM player for Mac OSX.

In addition to being available through Sirius.com, Howard Stern's website offers a Java application that streams the two Stern-themed channels. The site also states that Stern-specific video and audio clips will be made available at a later date.

iPhone and iPod Touch application

Sirius XM has developed a software application for use on the Apple iPhone and Apple iPod Touch devices that allows its subscribers and users of those devices to listen to its programming. The application was released and available for download on the evening of June 17, 2009. The Sirius XM app is available at the iTunes App Store. Also integrated into the app is a "click to buy" function where if a user clicks any song title playing on Sirius XM they are given the option to be taken to the iTunes Music Store where they can purchase the track or album. Some select programming, including MLB Play-by-Play, NFL Play-by-Play, and SIRIUS NASCAR Radio are not available at this time. Due to the terms of a new contract, the Howard Stern channels were added on Tuesday, December 21.

Android Application

Sirius XM has developed a streaming app for the Android Smartphone platform. This app is available free of charge in the market, and requires an additional $2.99/mo to subscribe to. The app features all of the content available on a standard Sirius receiver.

BlackBerry application

Sirius XM has also developed an application for use on certain 3G enabled Rim BlackBerry smartphones. Much like its iPhone and iPod Touch counterpart, it features a restricted 120 channel lineup featuring most of the music channels and selected talk programming. As with the iPhone app, some select programming, including MLB Play-by-Play, NFL Play-by-Play, SIRIUS NASCAR Radio are not available on the Blackberry. Shortly after signing a new contract, Howard Stern began promoting the mobile app, and his content was added to the mobile offerings.

Blackberry smartphones currently compatible with the Sirius app:

BlackBerry Curve 8500

BlackBerry Curve 8900

BlackBerry Bold

BlackBerry Storm

BlackBerry Storm 2

BlackBerry Tour

BlackBerry Curve 8330¹

¹ If OS version is above 5.0.239

Sirius in Canada

In November 2004, a partnership between Sirius, Standard Broadcasting and the Canadian Broadcasting Corporation filed an application with the Canadian Radio-television and Telecommunications Commission to introduce Sirius in Canada. The application was approved on June 16, 2005. The decision was appealed to the Canadian federal cabinet by a number of broadcasting, labour, and arts and culture organizations, including the Friends of Canadian Broadcasting, CHUM Limited, and the National Campus and Community Radio Association. The groups objected to Sirius’ approach to and reduced levels of Canadian content and French language programming, along with the exclusion of Canadian non-commercial broadcasting. After a lengthy debate, cabinet rejected the appeals on September 9, 2005. Sirius Canada was officially launched December 1, 2005.

The Canadian Broadcasting Corporation has reported poor reception in northern Canada.

Sirius in Puerto Rico

in September 2009, The Federal Communications Commission said "yes" to Sirius XM's request for Special Temporary Authority temporarily to operate 20 terrestrial repeaters for the satellite radio service in Puerto Rico.

The commission did so over the objections of the Puerto Rico Radio Broadcasters Association (Asociación de Radiodifusores de Puerto Rico), who said the approval in essence expands the Sirius XM footprint outside its authorized coverage area and that the satcaster would compete with terrestrial broadcasters for listeners.

After receiving communications by public officials in opposition to the broadcasters, such as Puerto Rico Secretary of State Kenneth McClintock, in rejecting those arguments, the commission said Sirius XM's footprint already covers the island but the signal is weak and blocked by tall buildings and foliage. As for the impact on competition, the FCC said it has considered these arguments before and "declined to find that" satellite radio would harm local broadcasters.

The Sirius full terrestrial coverage is available in select sites in the cities of San Juan, Carolina, Bayamón, Cataño, Caguas and Ponce. In the rest of Puerto Rico, coverage is provided by Sirius' constellation of satellites.

Sirius Internet Radio

In October 2006, Sirius announced that it was launching a new service named Sirius Internet Radio that offered approximately 75 of the 135 Sirius channels worldwide to people other than subscribers to its satellite radio service. Prior to this, Sirius subscribers who had a satellite radio were also able to access many of the Sirius channels via the internet, using a special password, but the service operated at 32kbit/s and was only available to those who purchased a satellite radio receiver. Sirius Internet Radio (SIR) is an internet-only subscription, allowing worldwide listeners to listen to the content without having to purchase a satellite radio receiver. The service also expands the number of channels that are available to Sirius Stiletto 100 users via WiFi.

Liberty Media Corporation investment

As of February 11, 2009, Sirius XM had $3.25 billion in total debt and had until February 17, 2009 to repay $175 million in bonds held by EchoStar. EchoStar has been buying Sirius XM's debt since an unsuccessful December 2008 takeover bid. Shares of Sirius XM had been trading for less than $1 from September 10, 2008 until February 2010. The company announced in early February 2009 that it may file for bankruptcy "as early as" Tuesday, February 17, 2009. On February 17, 2009, Sirius entered into an investment agreement with Liberty Media Corporation. Sirius received 550 million dollars to pay off maturing debt in exchange for 40% of its convertible preferred stock.

See also

Applied Media Technologies Corporation – Primary distribution partner for SIRIUS commercial accounts

Commercialization of space

Dish Network

WorldSpace

Primosphere Limited Partnership, a SDARS license auction participant

Digital Satellite Broadcasting Corporation, a SDARS license auction participant

References

External links

Sirius Satellite Radio Official website (United States)

Sirius Satellite Radio Official website (Canada)

Sirius Satellite Radio Official channel guide

Sirius Satellite Radio Blog and Fan Website

FCC Spectrum Award

Category:Companies established in 1990 Category:Companies based in New York City Category:Radio broadcasting companies of the United States Category:Telecommunications companies of the United States Category:American radio networks Category:Communications satellite operators

de:Sirius Satellite Radio es:Sirius Satellite Radio fr:Sirius Satellite Radio no:Sirius Satellite Radio fi:Sirius Satellite Radio

Partof	the Cold War and the Indochina Wars
Date	– ()
Place	South Vietnam, North Vietnam, Cambodia, Laos
Causes	Reunification of Vietnam (North Vietnam)Containment Policy and Domino Theory, Gulf of Tonkin Incident (United States)
Territory	Unification of North and South Vietnam into the Socialist Republic of Vietnam.
Result	Communist Vietnamese victory Withdrawal of American forces from Indochina Dissolution of South Vietnam Communist governments take power in Vietnam, Cambodia and Laos
Combatant1	Anti-Communist forces: Khmer Republic Kingdom of Laos ''Supported by:'' 23px Spain
Combatant2	Communist forces: NLF Khmer Rouge Pathet Lao People's Republic of China ''Supported by:''
Strength1	~1,830,000 (1968) South Vietnam: 850,000 United States: 536,100 Free World Military Forces: 65,000 Republic of Korea: 50,000 Australia: 7,672 Thailand, Philippines: 10,450 New Zealand: 552
Strength2	~461,000 North Vietnam: 287,465 (Jan 1968) PRC: 170,000 (1969) Soviet Union: 3,000 DPR Korea: 300–600
Commander1	Ngô Đình Diệm Nguyễn Văn Thiệu Nguyễn Cao Kỳ Cao Văn Viên Lyndon B. Johnson Richard Nixon William Westmoreland Creighton Abrams Park Chung Hee Chae Myung Shin Lon Nol ...''and others''
Commander2	Hồ Chí Minh Lê Duẩn Võ Nguyên Giáp Hoàng Văn Thái Văn Tiến Dũng Trần Văn Trà Nguyễn Văn Linh Nguyễn Hữu Thọ...''and others''
Casualties1	South Vietnam220,357 (low est.) – 316,000 dead (highest est.); 1,170,000 wounded United States58,220 dead; the CRS (Congressional Research Service) Report for Congress, American War and Military Operations Casualties: Lists and Statistics, dated February 26, 2010, and the book Crucible Vietnam: Memoir of an Infantry Lieutenant. Some other sources give different figures (e.g. the 2005/2006 documentary ''Heart of Darkness: The Vietnam War Chronicles 1945–1975'' cited elsewhere in this article gives a figure of 58,159 U.S. deaths, The 2007 book ''Vietnam Sons: For Some, the War Never Ended'' gives a figure of 58,226.)|nameUSd&w;|groupA}}

1,687 missing; 303,635 wounded

Total dead: 315,384 – 412,000Total wounded: ~1,490,000+ | |casualties2 = North Vietnam & NLF1,176,000 dead or missing (highest est.); 600,000+ wounded P.R. China1,446 dead; 4,200 wounded Soviet Union16 dead

Total dead: ~1,177,462 (highest est.)Total wounded: ~604,200+ | |casualties3 = Vietnamese civilian dead: ~200,000 – 2,000,000 Cambodian civilian dead: 200,000 – 300,000*|group="A"}} was a Cold War-era military conflict that occurred in Vietnam, Laos, and Cambodia from 1 November 1955 U.S. government reports currently cite 1 November 1955, as the commencement date of the “Vietnam Conflict,” for this was the day when the U.S. Military Assistance Advisory Group (MAAG) in Indochina (deployed to Southeast Asia under President Truman), was reorganized into country-specific units and MAAG Vietnam was established. So on 1 November 1955 a Vietnamese MAAG was created.

Other start dates include when Hanoi authorized Viet Cong forces in South Vietnam to begin a low level insurgency in December 1956. Where as some view 26 September 1959 when the first battle occurred between the Communist and South Vietnamese army. |group="A"|name="start date"}} to the fall of Saigon on 30 April 1975. This war followed the First Indochina War and was fought between North Vietnam, supported by its communist allies, and the government of South Vietnam, supported by the United States and other anti-communist nations. The Viet Cong, a lightly armed South Vietnamese communist-controlled common front, largely fought a guerrilla war against anti-communist forces in the region. The Vietnam People's Army (North Vietnamese Army) engaged in a more conventional war, at times committing large units into battle. U.S. and South Vietnamese forces relied on air superiority and overwhelming firepower to conduct search and destroy operations, involving ground forces, artillery and airstrikes.

The U.S. government viewed involvement in the war as a way to prevent a communist takeover of South Vietnam as part of their wider strategy of containment. The North Vietnamese government viewed the war as a colonial war, fought initially against France, backed by the U.S., and later against South Vietnam, which it regarded as a U.S. puppet state. U.S. military advisors arrived beginning in 1950. U.S. involvement escalated in the early 1960s, with U.S. troop levels tripling in 1961 and tripling again in 1962. U.S. combat units were deployed beginning in 1965. Operations spanned borders, with Laos and Cambodia heavily bombed. Involvement peaked in 1968 at the time of the Tet Offensive. After this, U.S. ground forces were withdrawn as part of a policy called Vietnamization. Despite the Paris Peace Accords, signed by all parties in January 1973, fighting continued.

U.S. military involvement ended on 15 August 1973 as a result of the Case–Church Amendment passed by the U.S. Congress. The capture of Saigon by the North Vietnamese army in April 1975 marked the end of the Vietnam War. North and South Vietnam were reunified the following year. The war exacted a huge human cost in terms of fatalities (See: Vietnam War casualties). Estimates of the number of Vietnamese soldiers and civilians killed vary from less than one million to more than three million. Some 200,000–300,000 Cambodians, 20,000–200,000 Laotians, and 58,220 U.S. service members also died in the conflict. Thus, in Vietnamese, the war is known as ''Chiến tranh Việt Nam'' (The Vietnam War), or as ''Kháng chiến chống Mỹ'' (Resistance War Against America), loosely translated as ''the American War''.

The main military organizations involved in the war were, on one side, the Army of the Republic of Vietnam (ARVN) and the U.S. military, and, on the other side, the Vietnam People's Army (VPA), or North Vietnamese Army (NVA), and the Viet Cong, or National Front for the Liberation of South Vietnam (NLF), a South Vietnamese communist army.

Background to 1949

France began its conquest of Indochina in the late 1850s, and completed pacification by 1893. The Treaty of Huế, concluded in 1884, formed the basis for French colonial rule in Vietnam for the next seven decades. In spite of military resistance, most notable by the Can Vuong of Phan Dinh Phung, by 1888, the area of the current-day nations of Cambodia and Vietnam was made into the colony of French Indochina (Laos was added later). Various Vietnamese opposition movements to the French rule existed during this period, such as the Viet Nam Quoc Dan Dang who staged the failed Yen Bai mutiny in 1930, but none were ultimately as successful as the Viet Minh common front, controlled by the Communist Party of Vietnam, founded in 1941 and funded by U.S. and Chinese Nationalist Party in its fight against Japanese occupation.|group=A}}

During World War II, the French were defeated by the Germans in 1940. For French Indochina, this meant that the colonial authorities became Vichy French, allies of the German-Italian Axis powers. In turn this meant that the French collaborated with the Japanese forces after their invasion of French Indochina during 1940. The French continued to run affairs in the colony, but ultimate power resided in the hands of the Japanese. However, they did not have enough power to fight actual battles at first. Ho Chi Minh was suspected of being a communist and jailed for a year by the Chinese national party.

Double occupation by France and Japan continued until the German forces were expelled from France and the French Indochina colonial authorities started holding secret talks with the Free French. Fearing that they could no longer trust the French authorities the Japanese army interned them all on 9 March 1945 and assumed direct control themselves through their puppet state of the Empire of Vietnam under Bảo Đại.

During 1944–1945, a deep famine struck northern Vietnam due to a combination of poor weather and French/Japanese exploitation. 1 million people died of starvation (out of a population of 10 million in the affected area). Exploiting the administrative gap that the internment of the French had created, the Viet Minh in March 1945 urged the population to ransack rice warehouses and refuse to pay their taxes. Between 75 and 100 warehouses were consequently raided. This rebellion against the effects of the famine and the authorities that were partially responsible for it bolstered the Viet Minh's popularity and they recruited many members during this period. After their defeat in the war, the Japanese Army gave weapons to the Vietnamese. To further help the nationalists, the Japanese kept Vichy French officials and military officers imprisoned for a month after the surrender. The Việt Minh had recruited more than 600 Japanese soldiers and given them roles to train or command Vietnamese soldiers.

On 2 September 1945, Ho Chi Minh, the leader of the Viet Minh, declared the independent Democratic Republic of Vietnam before a crowd of 500,000 in Hanoi. When the British landed in the South, they rearmed the interned French forces as well as parts of the surrendered Japanese forces to aid them in retaking southern Vietnam as they did not have enough troops to do this themselves. In January 1946, the Viet Minh won elections across central and northern Vietnam. On March 6, 1946, Ho Chi Minh signed an agreement allowing French forces to replace Nationalist Chinese forces, in exchange for French recognition of the Democratic Republic of Vietnam as a "free" republic within the French Union, with the specifics of such recognition to be determined by future negotiation. The French landed in Hanoi by March 1946 and in November of that year they ousted the Viet Minh from the city. British forces departed on 26 March 1946, leaving Vietnam in the hands of the French. Soon thereafter the Viet Minh began a guerrilla war against the French Union forces, beginning the First Indochina War.

The war spread to Laos and Cambodia where Communists organized the Pathet Lao and the Khmer Serei after the model of the Viet Minh. Globally, the Cold War began in earnest, which meant that the rapprochement that existed between the Western powers and the Soviet Union during World War II disintegrated. The Viet Minh fight was hampered by a lack of weapons; this situation changed by 1949 when the Chinese Communists had largely won the Chinese Civil War and were free to provide arms to their Vietnamese allies. The outbreak of the Korean War in June 1950 convinced many Washington policymakers that the war in Indochina was an example of communist expansionism directed by the Kremlin.

PRC military advisors began assisting the Viet Minh in July 1950. PRC weapons, expertise, and laborers transformed the Viet Minh from a guerrilla force into a regular army. In September 1950, the United States created a Military Assistance and Advisory Group (MAAG) to screen French requests for aid, advise on strategy, and train Vietnamese soldiers. By 1954, the United States had supplied 300,000 small arms and spent US$1 billion in support of the French military effort and was shouldering 80 percent of the cost of the war.

There were also talks between the French and Americans in which the possible use of three tactical nuclear weapons was considered, though how seriously this was considered and by whom are even now vague and contradictory. One version of plan for the proposed Operation Vulture envisioned sending 60 B-29s from U.S. bases in the region, supported by as many as 150 fighters launched from U.S. Seventh Fleet carriers, to bomb Viet Minh commander Vo Nguyen Giap's positions. The plan included an option to use up to three atomic weapons on the Viet Minh positions. Admiral Arthur W. Radford, Chairman of the U.S. Joint Chiefs of Staff, gave this nuclear option his backing. U.S. B-29s, B-36s, and B-47s could have executed a nuclear strike, as could carrier aircraft from the Seventh Fleet.

U.S. carriers sailed to the Gulf of Tonkin, and reconnaissance flights over Dien Bien Phu were conducted during the negotiations. According to Richard Nixon the plan involved the Joint Chiefs of Staff drawing up plans to use 3 small tactical nuclear weapons in support of the French. President Eisenhower made American participation contingent on British support, but London was opposed. In the end, convinced that the political risks outweighed the possible benefits, Eisenhower decided against the intervention.As an experienced five-star general, Eisenhower was very wary of getting the United States involved in a land war in Asia.

The Viet Minh received crucial support from the Soviet Union and PRC. PRC support in the Border Campaign of 1950 allowed supplies to come from PRC into Vietnam. Throughout the conflict, U.S. intelligence estimates remained skeptical of French chances of success.

The Battle of Dien Bien Phu marked the end of French involvement in Indochina. The Viet Minh and their mercurial commander Vo Nguyen Giap handed the French a stunning military defeat, and on 7 May 1954, the French Union garrison surrendered. Of the 12,000 French prisoners taken by the Viet Minh only 3000 survived. At the Geneva Conference the French negotiated a ceasefire agreement with the Viet Minh. Independence was granted to Cambodia, Laos, and Vietnam.

Transition period

Vietnam was temporarily partitioned at the 17th parallel, and under the terms of the Geneva Convention, civilians were to be given the opportunity to move freely between the two provisional states for a 300-day period. Elections throughout the country were to be held in 1956 to establish a unified government. Around one million northerners, mainly minority Catholics, fled south, fearing persecution by the communists, following an American propaganda campaign using slogans such as "The Virgin Mary is heading south", and aided by a U.S. funded $93 million relocation program, which included ferrying refugees with the Seventh Fleet. It is estimated that as many as two million more would have left had they not been stopped by the Viet Minh. The northern, mainly Catholic refugees were meant to give Diem a strong anti-communist constituency. Diem later went on to staff his administration's key posts mostly with northern and central Catholics.

In addition to the Catholics flowing south, up to 130,000 ‘Revolutionary Regroupees’, went north for "regroupment" expecting to return to the South within 2 years. The Viet Minh left roughly 5,000 to 10,000 cadres in South Vietnam as a "politico-military substructure within the object of its irredentism." The last French soldiers were to leave Vietnam in April 1956. The PRC completed their withdrawal from North Vietnam at around the same time. Around 52,000 Vietnamese civilians moved from south to north.

In the north, the Viet Minh ruled as the DRV and engaged in a drastic land reform program in which an estimated eight thousand perceived "class enemies" were executed. In 1956 the Communist Party leaders of Hanoi admitted to "excesses" in implementing this program and restored a large amount of the land to the original owners.

In the south, former Emperor Bảo Đại's State of Vietnam operated, with Ngô Đình Diệm (appointed in July 1954) as his prime minister. In June 1955, Diem announced that elections would not be held. South Vietnam had rejected the agreement from the beginning and was therefore not bound by it, he said. "How can we expect 'free elections' to be held in the Communist North?" Diem asked. President Dwight D. Eisenhower echoed senior U.S. experts when he wrote that, in 1954, "80 per cent of the population would have voted for the Communist Ho Chi Minh" over Emperor Bảo Đại.

In April–June 1955, Diem (against U.S. advice) cleared the decks of any political opposition in the south by launching military operations against the Cao Dai religious sect, the Hoa Hao sect of Ba Cut, and the Binh Xuyen organized crime group (which was allied with members of the secret police and some military elements). As broad-based opposition to his harsh tactics mounted, Diem increasingly sought to blame the communists.

In a referendum on the future of the State of Vietnam on 23 October, Diem rigged the poll supervised by his brother Ngo Dinh Nhu and was credited with 98.2 percent of the vote, including 133% in Saigon. His American advisers had recommended a more modest winning margin of "60 to 70 percent." Diem, however, viewed the election as a test of authority. On 26 October 1955, Diem declared the new Republic of Vietnam (ROV), with himself as president. The ROV was created largely because of the Eisenhower administration's desire for an anti-communist state in the region.

Diem era, 1955–1963

The Domino theory, which argued that if one country fell to communist forces, then all of the surrounding countries would follow, was first proposed as policy by the Eisenhower administration. It was, and is still, commonly hypothesized that it applied to Vietnam. John F. Kennedy, then a U.S. senator, said in a speech to the American Friends of Vietnam: "Burma, Thailand, India, Japan, the Philippines and obviously Laos and Cambodia are among those whose security would be threatened if the Red Tide of Communism overflowed into Vietnam."

Rule

A devout Roman Catholic, Diem was fervently anti-communist, nationalist and socially conservative. Historian Luu Doan Huynh notes, however, that "Diem represented narrow and extremist nationalism coupled with autocracy and nepotism." As a wealthy Catholic, Diem was viewed by many ordinary Vietnamese as part of the elite who had helped the French rule Vietnam; Diem had been interior minister in the colonial government. The majority of Vietnamese people were Buddhist, and were alarmed by actions such as his dedication of the country to the Virgin Mary.

Beginning in the summer of 1955, he launched the "Denounce the Communists" campaign, during which communists and other anti-government elements were arrested, imprisoned, tortured, or executed. Diem instituted a policy of death penalty against any activity deemed communist in August 1956. Opponents were labeled Viet Cong ("Vietnamese communist") by the regime to degrade their nationalist credentials. As a measure of the level of political repression, about 12,000 suspected opponents of Diem were killed in the years 1955–1957 and by the end of 1958 an estimated 40,000 political prisoners had been jailed.

In May, 1957, Diem undertook a ten-day state visit to the United States. President Eisenhower pledged his continued support. A parade in New York City was held in his honor. Although Diem was openly praised, in private Secretary of State John Foster Dulles conceded that he had been selected because there were no better alternatives.

Robert McNamara wrote that the new American patrons were almost completely ignorant of Vietnamese culture. They knew little of the language or long history of the country. There was a tendency to assign American motives to Vietnamese actions, and Diem warned that it was an illusion to believe that blindly copying Western methods would solve Vietnamese problems.

Insurgency in the South, 1956–1960

The Sino-Soviet split led to a reduction in the influence of the PRC, which had insisted in 1954 that the Viet Minh accept a division of the country. Trường Chinh, North Vietnam's pro-PRC party first secretary, was demoted and Hanoi authorized communists in South Vietnam to begin a low level insurgency in December 1956. This insurgency in the south had begun in response to Diem's Denunciation of Communists campaign, in which thousands of local Viet Minh cadres and supporters had been executed or sent to concentration camps, and was in violation of the Northern Communist party line, which had enjoined them not to start an insurrection, but rather engage in a political campaign, agitating for a free all-Vietnam election in accordance with the Geneva accords.

Hồ Chí Minh stated, "Do not engage in military operations; that will lead to defeat. Do not take land from a peasant. Emphasize nationalism rather than communism. Do not antagonize anyone if you can avoid it. Be selective in your violence. If an assassination is necessary, use a knife, not a rifle or grenade. It is too easy to kill innocent bystanders with guns and bombs, and accidental killing of the innocent bystanders will alienate peasants from the revolution. Once an assassination has taken place, make sure peasants know why the killing occurred." This strategy was referred to as "armed propaganda."

Soon afterward, Lê Duẩn, a communist leader who had been working in the South, returned to Hanoi to accept the position of acting first secretary, effectively replacing Trường. Duẩn urged a military line and advocated increased assistance to the insurgency. Four hundred government officials were assassinated in 1957 alone, and the violence gradually increased. While the terror was originally aimed at local government officials, it soon broadened to include other symbols of the ''status quo'', such as schoolteachers, health workers, and agricultural officials. Village chiefs were Diem appointees from outside the villages and were hated by the peasantry for their corruption and abuse.) According to one estimate, 20 percent of South Vietnam's village chiefs had been assassinated by the insurgents by 1958. The insurgency sought to completely destroy government control in South Vietnam's rural villages and replace it with a shadow government.

In January 1959, the North's Central Committee issued a secret resolution authorizing an "armed struggle". This authorized the southern communists to begin large-scale operations against the South Vietnamese military. North Vietnam supplied troops and supplies in earnest, and the infiltration of men and weapons from the north began along the Ho Chi Minh Trail. In May, South Vietnam enacted Law 10/59, which made political violence punishable by death and property confiscation.

Observing the increasing unpopularity of the Diem regime, on 12 December 1960, Hanoi authorized the creation of the National Liberation Front as a common front controlled by the communist party in the South.

Successive American administrations, as Robert McNamara and others have noted, overestimated the control that Hanoi had over the NLF. Diem's paranoia, repression, and incompetence progressively angered large segments of the population of South Vietnam. According to a November 1960 report by the head of the U.S. military advisory team, Lieutenant General Lionel C. McGarr, a "significant part" of the population in the south supported the communists. The communists thus had a degree of popular support for their campaign to bring down Diem and reunify the country.

During John F. Kennedy's administration, 1961–1963

When John F. Kennedy won the 1960 U.S. presidential election, one major issue Kennedy raised was whether the Soviet space and missile programs had surpassed those of the United States. As Kennedy took over, despite warnings from Eisenhower about Laos and Vietnam, Europe and Latin America "loomed larger than Asia on his sights." In his inaugural address, Kennedy made the ambitious pledge to "pay any price, bear any burden, meet any hardship, support any friend, oppose any foe, in order to assure the survival and success of liberty."

In June 1961, John F. Kennedy bitterly disagreed with Soviet premier Nikita Khrushchev when they met in Vienna over key U.S.-Soviet issues. The aftermath of the Korean War created the idea of a limited war.

Although Kennedy stressed long-range missile parity with the Soviets, he was also interested in using special forces for counterinsurgency warfare in Third World countries threatened by communist insurgencies. Although they were originally intended for use behind front lines after a conventional invasion of Europe, Kennedy believed that the guerrilla tactics employed by special forces such as the Green Berets would be effective in a "brush fire" war in Vietnam.

The Kennedy administration remained essentially committed to the Cold War foreign policy inherited from the Truman and Eisenhower administrations. In 1961, the U.S. had 50,000 troops based in Korea, and Kennedy faced a three-part crisis—the failure of the Bay of Pigs Invasion, the construction of the Berlin Wall, and a negotiated settlement between the pro-Western government of Laos and the Pathet Lao communist movement. These made Kennedy believe that another failure on the part of the United States to gain control and stop communist expansion would fatally damage U.S. credibility with its allies and his own reputation. Kennedy determined to "draw a line in the sand" and prevent a communist victory in Vietnam, saying, "Now we have a problem making our power credible and Vietnam looks like the place", to James Reston of ''The New York Times'' immediately after meeting Khrushchev in Vienna.

In May 1961, Vice President Lyndon B. Johnson visited Saigon and enthusiastically declared Diem the "Winston Churchill of Asia." Asked why he had made the comment, Johnson replied, "Diem's the only boy we got out there." Johnson assured Diem of more aid in molding a fighting force that could resist the communists.

Kennedy's policy toward South Vietnam rested on the assumption that Diem and his forces must ultimately defeat the guerrillas on their own. He was against the deployment of American combat troops and observed that "to introduce U.S. forces in large numbers there today, while it might have an initially favorable military impact, would almost certainly lead to adverse political and, in the long run, adverse military consequences."

The quality of the South Vietnamese military, however, remained poor. Bad leadership, corruption, and political promotions all played a part in emasculating the ARVN. The frequency of guerrilla attacks rose as the insurgency gathered steam. While Hanoi's support for the NLF played a role, South Vietnamese governmental incompetence was at the core of the crisis.

Kennedy advisers Maxwell Taylor and Walt Rostow recommended that U.S. troops be sent to South Vietnam disguised as flood relief workers. Kennedy rejected the idea but increased military assistance yet again. In April 1962, John Kenneth Galbraith warned Kennedy of the "danger we shall replace the French as a colonial force in the area and bleed as the French did." By 1963, there were 16,000 American military personnel in South Vietnam, up from Eisenhower's 900 advisors.

The Strategic Hamlet Program had been initiated in 1961. This joint U.S.-South Vietnamese program attempted to resettle the rural population into fortified camps. The aim was to isolate the population from the insurgents, provide education and health care, and strengthen the government's hold over the countryside. The Strategic Hamlets, however, were quickly infiltrated by the guerrillas. The peasants resented being uprooted from their ancestral villages. In part, this was because Colonel Pham Ngoc Thao, a Diem favourite who was instrumental in running the program, was in fact a communist agent who used his Catholicism to gain influential posts and damage the ROV from the inside.

The government refused to undertake land reform, which left farmers paying high rents to a few wealthy landlords. Corruption dogged the program and intensified opposition.

On 23 July 1962, fourteen nations, including the People's Republic of China, South Vietnam, the Soviet Union, North Vietnam and the United States, signed an agreement promising the neutrality of Laos.

Coup and assassinations

:''See also: Kennedy's role, 1960 South Vietnamese coup attempt, 1962 South Vietnamese Independence Palace bombing, Huế Phật Đản shootings and Xa Loi Pagoda raids'' The inept performance of the South Vietnamese army was exemplified by failed actions such as the Battle of Ap Bac on 2 January 1963, in which a small band of Viet Cong beat off a much larger and better equipped South Vietnamese force, many of whose officers seemed reluctant even to engage in combat. The ARVN were led in that battle by Diem's most trusted General Huynh Van Cao, commander of the IV Corps, and a Catholic who had been promoted due to religion and fidelity rather than skill, and whose main job was to preserve his forces to stave off coups; Cao had earlier vomited during a communist attack. Some policymakers in Washington began to conclude that Diem was incapable of defeating the communists and might even make a deal with Ho Chi Minh. He seemed concerned only with fending off coups, and had become more paranoid after attempts in 1960, 1962, which he partly attributed to U.S. encouragement. As Robert F. Kennedy noted, "Diem wouldn't make even the slightest concessions. He was difficult to reason with..."

Discontent with Diem's policies exploded following the Huế Phật Đản shootings of majority Buddhists who were protesting against the ban on the Buddhist flag on Vesak, the Buddha's birthday. This resulted in mass protests against discriminatory policies that gave privileges to the Catholic Church and its adherents. Diem's elder brother Ngo Dinh Thuc was the Archbishop of Huế and aggressively blurred the separation between church and state. Thuc's anniversary celebrations shortly before Vesak had been bankrolled by the government and Vatican flags were displayed prominently. There had also been reports of Buddhist pagodas being demolished by Catholic paramilitaries throughout Diem's rule. Diem refused to make concessions to the Buddhist majority or take responsibility for the deaths. On 21 August 1963, the ARVN Special Forces of Colonel Le Quang Tung, loyal to Diem's younger brother Ngo Dinh Nhu, raided pagodas across Vietnam, causing widespread damage and destruction and leaving a death toll estimated to range into the hundreds.

U.S. officials began discussing the possibility of a regime change during the middle of 1963. The United States Department of State was generally in favor of encouraging a coup, while the Defense Department favored Diem.

Chief among the proposed changes was the removal of Diem's younger brother Nhu, who controlled the secret police and special forces was seen as the man behind the Buddhist repression and more generally the architect of the Ngo family's rule. This proposal was conveyed to the U.S. embassy in Saigon in Cable 243.

The CIA was in contact with generals planning to remove Diem. They were told that the United States would not oppose such a move nor punish the generals by cutting off aid. President Diem was overthrown and executed, along with his brother, on 2 November 1963. When he was informed, Maxwell Taylor remembered that Kennedy "rushed from the room with a look of shock and dismay on his face." He had not approved Diem's murder. The U.S. ambassador to South Vietnam, Henry Cabot Lodge, invited the coup leaders to the embassy and congratulated them. Ambassador Lodge informed Kennedy that "the prospects now are for a shorter war".

Following the coup, chaos ensued. Hanoi took advantage of the situation and increased its support for the guerrillas. South Vietnam entered a period of extreme political instability, as one military government toppled another in quick succession. Increasingly, each new regime was viewed as a puppet of the Americans; whatever the failings of Diem, his credentials as a nationalist (as Robert McNamara later reflected) had been impeccable.

U.S military advisers were embedded at every level of the South Vietnamese armed forces. They were, however, almost completely ignorant of the political nature of the insurgency. The insurgency was a political power struggle, in which military engagements were not the main goal. The Kennedy administration sought to refocus U.S. efforts on pacification and "winning over the hearts and minds" of the population. The military leadership in Washington, however, was hostile to any role for U.S. advisers other than conventional troop training. General Paul Harkins, the commander of U.S. forces in South Vietnam, confidently predicted victory by Christmas 1963. The CIA was less optimistic, however, warning that "the Viet Cong by and large retain de facto control of much of the countryside and have steadily increased the overall intensity of the effort".

Paramilitary officers from the CIA's Special Activities Division trained and led Hmong tribesmen in Laos and into Vietnam. The indigenous forces numbered in the tens of thousands and they conducted direct action missions, led by paramilitary officers, against the Communist Pathet Lao forces and their North Vietnamese supporters. The CIA also ran the Phoenix Program and participation Military Assistance Command, Vietnam – Studies and Observations Group (MAC-V SOG), which was originally named the Special Operations Group, but was changed for cover purposes.

Lyndon B. Johnson escalates the war, 1963–1969

Lyndon B. Johnson (LBJ), as he took over the presidency after the death of Kennedy, initially did not consider Vietnam a priority and was more concerned with his "Great Society" and progressive social programs. Presidential aide Jack Valenti recalls, "Vietnam at the time was no bigger than a man's fist on the horizon. We hardly discussed it because it was not worth discussing."

On 24 November 1963, Johnson said, "the battle against communism... must be joined... with strength and determination." The pledge came at a time when Vietnam was deteriorating, especially in places like the Mekong Delta, because of the recent coup against Diem.

Johnson had reversed Kennedy's disengagement policy from Vietnam in withdrawing 1,000 troops by the end of 1963 (NSAM 263 on 11 Oct.), with his own NSAM 273 (26 Nov.) to expand the war.

The military revolutionary council, meeting in lieu of a strong South Vietnamese leader, was made up of 12 members headed by General Duong Van Minh—whom Stanley Karnow, a journalist on the ground, later recalled as "a model of lethargy." Lodge, frustrated by the end of the year, cabled home about Minh: "Will he be strong enough to get on top of things?" His regime was overthrown in January 1964 by General Nguyen Khanh. However, there was persistent instability in the military as several coups—not all successful—occurred in a short space of time. On 2 August 1964, the , on an intelligence mission along North Vietnam's coast, allegedly fired upon and damaged several torpedo boats that had been stalking it in the Gulf of Tonkin.

A second attack was reported two days later on the and ''Maddox'' in the same area. The circumstances of the attack were murky. Lyndon Johnson commented to Undersecretary of State George Ball that "those sailors out there may have been shooting at flying fish."

The second attack led to retaliatory air strikes, prompted Congress to approve the Gulf of Tonkin Resolution, and gave the president power to conduct military operations in Southeast Asia without declaring war. In the same month, Johnson pledged that he was not "... committing American boys to fighting a war that I think ought to be fought by the boys of Asia to help protect their own land."

An undated NSA publication declassified in 2005, however, revealed that there was no attack on 4 August. It had already been called into question long before this. "Gulf of Tonkin incident", writes Louise Gerdes, "is an oft-cited example of the way in which Johnson misled the American people to gain support for his foreign policy in Vietnam." George C. Herring argues, however, that McNamara and the Pentagon "did not knowingly lie about the alleged attacks, but they were obviously in a mood to retaliate and they seem to have selected from the evidence available to them those parts that confirmed what they wanted to believe."

"From a strength of approximately 5,000 at the start of 1959 the Viet Cong's ranks grew to about 100,000 at the end of 1964...Between 1961 and 1964 the Army's strength rose from about 850,000 to nearly a million men." The numbers for U.S. troops deployed to Vietnam during the same period were quite different; 2,000 in 1961, rising rapidly to 16,500 in 1964. The National Security Council recommended a three-stage escalation of the bombing of North Vietnam. On 2 March 1965, following an attack on a U.S. Marine barracks at Pleiku, Operation Flaming Dart (initiated when Soviet Premier Alexei Kosygin was at a state visit to North Vietnam), Operation Rolling Thunder and Operation Arc Light commenced. The bombing campaign, which ultimately lasted three years, was intended to force North Vietnam to cease its support for the National Front for the Liberation of South Vietnam (NLF) by threatening to destroy North Vietnam's air defenses and industrial infrastructure. As well, it was aimed at bolstering the morale of the South Vietnamese. Between March 1965 and November 1968, "Rolling Thunder" deluged the north with a million tons of missiles, rockets and bombs.

Bombing was not restricted to North Vietnam. Other aerial campaigns, such as Operation Commando Hunt, targeted different parts of the NLF and VPA infrastructure. These included the Ho Chi Minh trail, which ran through Laos and Cambodia. The objective of forcing North Vietnam to stop its support for the NLF, however, was never reached. As one officer noted "this is a political war and it calls for discriminate killing. The best weapon... would be a knife... The worst is an airplane." The Chief of Staff of the United States Air Force Curtis LeMay, however, had long advocated saturation bombing in Vietnam and wrote of the Communists that "we're going to bomb them back into the Stone Age".

Escalation and ground war

After several attacks upon them, it was decided that U.S. Air Force bases needed more protection. The South Vietnamese military seemed incapable of providing security. On 8 March 1965, 3,500 U.S. Marines were dispatched to South Vietnam. This marked the beginning of the American ground war. U.S. public opinion overwhelmingly supported the deployment.

In a statement similar to that made to the French almost two decades earlier, Ho Chi Minh warned that if the Americans "want to make war for twenty years then we shall make war for twenty years. If they want to make peace, we shall make peace and invite them to afternoon tea." As former First Deputy Foreign Minister Tran Quang Co has noted, the primary goal of the war was to reunify Vietnam and secure its independence. The policy of the Democratic Republic of Vietnam (DRV) was not to topple other non-communist governments in South East Asia.

The Marines' assignment was defensive. The initial deployment of 3,500 in March was increased to nearly 200,000 by December. The U.S. military had long been schooled in offensive warfare. Regardless of political policies, U.S. commanders were institutionally and psychologically unsuited to a defensive mission. In December, ARVN forces suffered heavy losses at the Battle of Bình Giã, in a battle that both sides viewed as a watershed. Previously communist forces had utilized hit-and-run guerrilla tactics, however at Binh Gia they had successfully defeated a strong ARVN force in conventional warfare. Tellingly, South Vietnamese forces were again defeated in June, at the Battle of Đồng Xoài.

Desertion rates were increasing, and morale plummeted. General William Westmoreland informed Admiral U.S. Grant Sharp, Jr., commander of U.S. Pacific forces, that the situation was critical. He said, "I am convinced that U.S. troops with their energy, mobility, and firepower can successfully take the fight to the NLF [National Front for the Liberation of South Vietnam]." With this recommendation, Westmoreland was advocating an aggressive departure from America's defensive posture and the sidelining of the South Vietnamese. By ignoring ARVN units, the U.S. commitment became open-ended. Westmoreland outlined a three-point plan to win the war:

Phase 1. Commitment of U.S. (and other free world) forces necessary to halt the losing trend by the end of 1965.

Phase 2. U.S. and allied forces mount major offensive actions to seize the initiative to destroy guerrilla and organized enemy forces. This phase would end when the enemy had been worn down, thrown on the defensive, and driven back from major populated areas.

Phase 3. If the enemy persisted, a period of twelve to eighteen months following Phase 2 would be required for the final destruction of enemy forces remaining in remote base areas.

The plan was approved by Johnson and marked a profound departure from the previous administration's insistence that the government of South Vietnam was responsible for defeating the guerrillas. Westmoreland predicted victory by the end of 1967. Johnson did not, however, communicate this change in strategy to the media. Instead he emphasized continuity. The change in U.S. policy depended on matching the North Vietnamese and the NLF in a contest of attrition and morale. The opponents were locked in a cycle of escalation. The idea that the government of South Vietnam could manage its own affairs was shelved. The one-year tour of duty deprived units of experienced leadership. As one observer noted "we were not in Vietnam for 10 years, but for one year 10 times." As a result, training programs were shortened.

South Vietnam was inundated with manufactured goods. As Stanley Karnow writes, "the main PX [Post Exchange], located in the Saigon suburb of Cholon, was only slightly smaller than the New York Bloomingdale's..." The American buildup transformed the economy and had a profound impact on South Vietnamese society. A huge surge in corruption was witnessed.

Washington encouraged its SEATO allies to contribute troops. Australia, New Zealand, the Republic of Korea, Thailand, and the Philippines all agreed to send troops. Major allies, however, notably NATO nations Canada and the United Kingdom, declined Washington's troop requests. The U.S. and its allies mounted complex operations, such as operations Masher, Attleboro, Cedar Falls, and Junction City. However, the communist insurgents remained elusive and demonstrated great tactical flexibility.

Meanwhile, the political situation in South Vietnam began to stabilize with the coming to power of Prime Minister Air Marshal Nguyễn Cao Kỳ and figurehead Chief of State, General Nguyễn Văn Thiệu, in mid 1965 at the head of a military junta. This ended a series of coups that had happened more than once a year. In 1967, Thieu became president with Ky as his deputy, after rigged elections. Although they were nominally a civilian government, Ky was supposed to maintain real power through a behind-the-scenes military body. However, Thieu outmanoevred and sidelined Ky by filling the ranks with generals from his faction. Thieu was also accused of murdering Ky loyalists through contrived military accidents. Thieu, mistrustful and indecisive, remained president until 1975, having won a one-man election in 1971.

The Johnson administration employed a "policy of minimum candor" in its dealings with the media. Military information officers sought to manage media coverage by emphasizing stories that portrayed progress in the war. Over time, this policy damaged the public trust in official pronouncements. As the media's coverage of the war and that of the Pentagon diverged, a so-called credibility gap developed.

Tet Offensive

Having lured General Westmoreland's forces into the hinterland at Khe Sanh in Quảng Trị Province, in January 1968, the NVA and NLF broke the truce that had traditionally accompanied the Tết (Lunar New Year) holiday. They launched the surprise Tet Offensive in the hope of sparking a national uprising. Over 100 cities were attacked, with assaults on General Westmoreland's headquarters and the U.S. Embassy, Saigon.

Although the U.S. and South Vietnamese forces were initially taken aback by the scale of the urban offensive, they responded quickly and effectively, decimating the ranks of the NLF. In the former capital city of Huế, the combined NLF and VPA troops captured the Imperial Citadel and much of the city, which led to the Battle of Huế. Throughout the offensive, the American forces employed massive firepower; in Huế where the battle was the fiercest, that firepower left 80% of the city in ruins. During the interim between the capture of the Citadel and end of the "Battle of Huế", the communist insurgent occupying forces massacred several thousand unarmed Huế civilians (estimates vary up to a high of 6,000). After the war, North Vietnamese officials acknowledged that the Tet Offensive had, indeed, caused grave damage to NLF forces. But the offensive had another, unintended consequence.

General Westmoreland had become the public face of the war. He was featured on the cover of ''Time'' magazine three times and was named 1965's Man of the Year. ''Time'' described him as "the sinewy personification of the American fighting man... (who) directed the historic buildup, drew up the battle plans, and infused the... men under him with his own idealistic view of U.S. aims and responsibilities." In November 1967 Westmoreland spearheaded a public relations drive for the Johnson administration to bolster flagging public support. In a speech before the National Press Club he said that a point in the war had been reached "where the end comes into view." Thus, the public was shocked and confused when Westmoreland's predictions were trumped by Tet. The American media, which had been largely supportive of U.S. efforts, rounded on the Johnson administration for what had become an increasing credibility gap. Despite its military failure, the Tet Offensive became a political victory and ended the career of President Lyndon B. Johnson, who declined to run for re-election. Johnson's approval rating slumped from 48 to 36 percent.

As James Witz noted, Tet "contradicted the claims of progress... made by the Johnson administration and the military." The Tet Offensive was the turning point in America's involvement in the Vietnam War. It had a profound impact on domestic support for the conflict. The offensive constituted an intelligence failure on the scale of Pearl Harbor. Journalist Peter Arnett quoted an unnamed officer, saying of Bến Tre (laid to rubble by U.S. firepower) that "it became necessary to destroy the village in order to save it" (though the authenticity of this quote is disputed). According to one source, this quote was attributed to Major Booris of 9th Infantry Division.

Westmoreland became Chief of Staff of the Army in March, just as all resistance was finally subdued. The move was technically a promotion. However, his position had become untenable because of the offensive and because his request for 200,000 additional troops had been leaked to the media. Westmoreland was succeeded by his deputy Creighton Abrams, a commander less inclined to public media pronouncements.

On 10 May 1968, despite low expectations, peace talks began between the United States and the Democratic Republic of Vietnam. Negotiations stagnated for five months, until Johnson gave orders to halt the bombing of North Vietnam. The Democratic candidate, Vice President Hubert Humphrey, was running against Republican former vice president Richard Nixon.

As historian Robert Dallek writes, "Lyndon Johnson's escalation of the war in Vietnam divided Americans into warring camps... cost 30,000 American lives by the time he left office, (and) destroyed Johnson's presidency..." His refusal to send more U.S. troops to Vietnam was seen as Johnson's admission that the war was lost. It can be seen that the refusal was a tacit admission that the war could not be won by escalation, at least not at a cost acceptable to the American people.

Vietnamization, 1969–1972

Nixon Doctrine / Vietnamization

Severe communist losses during the Tet Offensive allowed U.S. President Richard Nixon to begin troop withdrawals. His plan, called the Nixon Doctrine, was to build up the ARVN, so that they could take over the defense of South Vietnam. The policy became known as "Vietnamization". Vietnamization had much in common with the policies of the Kennedy administration. One important difference, however, remained. While Kennedy insisted that the South Vietnamese fight the war themselves, he attempted to limit the scope of the conflict.

Nixon said in an announcement, "I am tonight announcing plans for the withdrawal of an additional 150,000 American troops to be completed during the spring of next year. This will bring a total reduction of 265,500 men in our armed forces in Vietnam below the level that existed when we took office 15 months ago."

On 10 October 1969, Nixon ordered a squadron of 18 B-52s loaded with nuclear weapons to race to the border of Soviet airspace to convince the Soviet Union that he was capable of anything to end the Vietnam War.

Nixon also pursued negotiations. Theater commander Creighton Abrams shifted to smaller operations, aimed at communist logistics, with better use of firepower and more cooperation with the ARVN. Nixon also began to pursue détente with the Soviet Union and rapprochement with the People's Republic of China. This policy helped to decrease global tensions. Détente led to nuclear arms reduction on the part of both superpowers. But Nixon was disappointed that the PRC and the Soviet Union continued to supply the North Vietnamese with aid. In September 1969, Ho Chi Minh died at age seventy-nine.

The anti-war movement was gaining strength in the United States. Nixon appealed to the "silent majority" of Americans to support the war. But revelations of the My Lai Massacre, in which a U.S. Army platoon raped and killed civilians, and the 1969 "Green Beret Affair" where eight Special Forces soldiers, including the 5th Special Forces Group Commander were arrested for the murder of a suspected double agent provoked national and international outrage.

The civilian cost of the war was again questioned when U.S. forces concluded Operation Speedy Express with a claimed bodycount of 10,889 Communist guerillas with only 40 U.S. losses; Kevin Buckley writing in ''Newsweek'' estimated that perhaps 5,000 of the Vietnamese dead were civilians.

Beginning in 1970, American troops were being taken away from border areas where much more killing took place, and instead put along the coast and interior, which is one reason why casualties in 1970 were less than half of 1969's totals.

Operation Menu: the secret bombing of Cambodia and Laos

Prince Norodom Sihanouk had proclaimed Cambodia neutral since 1955, but the communists used Cambodian soil as a base and Sihanouk tolerated their presence, because he wished to avoid being drawn into a wider regional conflict. Under pressure from Washington, however, he changed this policy in 1969. The Vietnamese communists were no longer welcome. President Nixon took the opportunity to launch a massive secret bombing campaign, called Operation Menu, against their sanctuaries along the Cambodia/Vietnam border.

This violated a long succession of pronouncements from Washington supporting Cambodian neutrality. Richard Nixon wrote to Prince Sihanouk in April 1969 assuring him that the United States respected "the sovereignty, neutrality and territorial integrity of the Kingdom of Cambodia..." In 1970, Prince Sihanouk was deposed by his pro-American prime minister Lon Nol. The country's borders were closed, while U.S. forces and ARVN launched incursions into Cambodia to attack VPA/NLF bases and buy time for South Vietnam.

The invasion of Cambodia sparked nationwide U.S. protests. Four students were killed by National Guardsmen at Kent State University during a protest in Ohio, which provoked public outrage in the United States. The reaction to the incident by the Nixon administration was seen as callous and indifferent, providing additional impetus for the anti-war movement.

In 1971 the Pentagon Papers were leaked to ''The New York Times''. The top-secret history of U.S. involvement in Vietnam, commissioned by the Department of Defense, detailed a long series of public deceptions. The Supreme Court ruled that its publication was legal.

The ARVN launched Operation Lam Son 719 in February 1971, aimed at cutting the Ho Chi Minh trail in Laos. The ostensibly neutral Laos had long been the scene of a secret war. After meeting resistance, ARVN forces retreated in a confused rout. They fled along roads littered with their own dead. When they ran out of fuel, soldiers abandoned their vehicles and attempted to barge their way on to American helicopters sent to evacuate the wounded. Many ARVN soldiers clung to helicopter skids in a desperate attempt to save themselves. U.S. aircraft had to destroy abandoned equipment, including tanks, to prevent them from falling into enemy hands. Half of the invading ARVN troops were either captured or killed. The operation was a fiasco and represented a clear failure of Vietnamization. As Karnow noted "the blunders were monumental... The (South Vietnamese) government's top officers had been tutored by the Americans for ten or fifteen years, many at training schools in the United States, yet they had learned little."

In 1971 Australia and New Zealand withdrew their soldiers. The U.S. troop count was further reduced to 196,700, with a deadline to remove another 45,000 troops by February 1972. As peace protests spread across the United States, disillusionment and ill-discipline grew in the ranks.

Vietnamization was again tested by the Easter Offensive of 1972, a massive conventional invasion of South Vietnam. The VPA and NLF quickly overran the northern provinces and in coordination with other forces attacked from Cambodia, threatening to cut the country in half. U.S. troop withdrawals continued. But American airpower came to the rescue with Operation Linebacker, and the offensive was halted. However, it became clear that without American airpower South Vietnam could not survive. The last remaining American ground troops were withdrawn in August.

1972 election and Paris Peace Accords

thumb|left|Phan Thị Kim Phúc, center, running down a road near [[Trảng Bàng District|Trảng Bàng, Vietnam, on 8 June 1972, after a napalm bomb was dropped on the village of Trảng Bàng by a plane of the Vietnam Air Force Photo: Nick Ut / The Associated Press]]. The war was the central issue of the 1972 presidential election. Nixon's opponent, George McGovern, campaigned on a platform of withdrawal from Vietnam. Nixon's National Security Adviser, Henry Kissinger, continued secret negotiations with North Vietnam's Lê Ðức Thọ. In October 1972, they reached an agreement.

However, South Vietnamese President Thieu demanded massive changes to the peace accord. When North Vietnam went public with the agreement's details, the Nixon administration claimed that the North was attempting to embarrass the President. The negotiations became deadlocked. Hanoi demanded new changes.

To show his support for South Vietnam and force Hanoi back to the negotiating table, Nixon ordered Operation Linebacker II, a massive bombing of Hanoi and Haiphong 18–29 December 1972. The offensive destroyed much of the remaining economic and industrial capacity of North Vietnam. Simultaneously Nixon pressured Thieu to accept the terms of the agreement, threatening to conclude a bilateral peace deal and cut off American aid.

On 15 January 1973, Nixon announced the suspension of offensive action against North Vietnam. The Paris Peace Accords on "Ending the War and Restoring Peace in Vietnam" were signed on 27 January 1973, officially ending direct U.S. involvement in the Vietnam War. A cease-fire was declared across North and South Vietnam. U.S. POWs were released. The agreement guaranteed the territorial integrity of Vietnam and, like the Geneva Conference of 1954, called for national elections in the North and South. The Paris Peace Accords stipulated a sixty-day period for the total withdrawal of U.S. forces. "This article", noted Peter Church, "proved... to be the only one of the Paris Agreements which was fully carried out."

Opposition to the Vietnam War: 1962–1975

Some advocates within the peace movement advocated a unilateral withdrawal of U.S. forces from Vietnam. One reason given for the withdrawal is that it would contribute to a lessening of tensions in the region and thus less human bloodshed. Early opposition to U.S. involvement in Vietnam was centered around the Geneva conference of 1954. American support of Diem in refusing elections was thought to be thwarting the very democracy that America claimed to be supporting. John Kennedy, while Senator, opposed involvement in Vietnam.

Opposition to the Vietnam War tended to unite groups opposed to U.S. anti-communism, imperialism and colonialism and, for those involved with the New Left such as the Catholic Worker Movement, capitalism itself. Others, such as Stephen Spiro opposed the war based on the theory of Just War. Some wanted to show solidarity with the people of Vietnam, such as Norman Morrison emulating the actions of Thích Quảng Đức. Some critics of U.S. withdrawal predicted that it would not contribute to peace but rather vastly increase bloodshed. These critics advocated U.S. forces remain until all threats from the Viet Cong and North Vietnamese Army had been eliminated. Advocates of U.S. withdrawal were generally known as "doves", and they called their opponents "hawks", following nomenclature dating back to the War of 1812.

High-profile opposition to the Vietnam War turned to street protests in an effort to turn U.S. political opinion. On 15 October 1969, the Vietnam Moratorium attracted millions of Americans. The fatal shooting of four anti-war protesters at Kent State University led to nation-wide university protests. Riots broke out at the 1968 Democratic National Convention. After explosive news reports of American military abuses, such as the 1968 My Lai Massacre, brought new attention and support to the anti-war movement, some veterans joined Vietnam Veterans Against the War. Anti-war protests ended with the final withdrawal of troops after the Paris Peace Accords were signed in 1973. South Vietnam was left to defend itself alone when the fighting resumed. Many South Vietnamese subsequently fled to the United States.

Exit of the Americans: 1973–1975

The United States began drastically reducing their troop support in South Vietnam during the final years of "Vietnamization". Many U.S. troops were removed from the region, and on 5 March 1971, the United States returned the 5th Special Forces Group, which was the first American unit deployed to South Vietnam, to its former base in Fort Bragg, North Carolina. |group="A"}}

Under the Paris Peace Accords, between North Vietnamese Foreign Minister Lê Ðức Thọ and U.S. Secretary of State Henry Kissinger, and reluctantly signed by South Vietnamese President Thiệu, U.S. military forces withdrew from South Vietnam and prisoners were exchanged. North Vietnam was allowed to continue supplying communist troops in the South, but only to the extent of replacing materials that were consumed. Later that year the Nobel Peace Prize was awarded to Kissinger and Thọ, but the Vietnamese negotiator declined it saying that a true peace did not yet exist.

The communist leaders had expected that the ceasefire terms would favor their side. But Saigon, bolstered by a surge of U.S. aid received just before the ceasefire went into effect, began to roll back the Vietcong. The communists responded with a new strategy hammered out in a series of meetings in Hanoi in March 1973, according to the memoirs of Trần Văn Trà.

As the Vietcong's top commander, Trà participated in several of these meetings. With U.S. bombings suspended, work on the Ho Chi Minh Trail and other logistical structures could proceed unimpeded. Logistics would be upgraded until the North was in a position to launch a massive invasion of the South, projected for the 1975–76 dry season. Trà calculated that this date would be Hanoi's last opportunity to strike before Saigon's army could be fully trained. [[Image:93 us house membership.png|thumb|left|300px| {| style="background-color:transparent" ! align=center colspan=2 | In the 1972 Congressional Election, the majority of Americans voted for Democratic Congressmen. This map shows the House seats by party holding plurality in state |- | | |- | | |- | | |}]]

In the November 1972 Election, McGovern lost 49 of 50 states to Richard Nixon, who was re-elected U.S. president. Despite supporting Nixon over McGovern, many American voters split their tickets, returning a Democratic majority to both houses of Congress.

On 15 March 1973, U.S. President Richard Nixon implied that the United States would intervene militarily if the communist side violated the ceasefire. Public and congressional reaction to Nixon's trial balloon was unfavorable and in April Nixon appointed Graham Martin as U.S. ambassador to Vietnam. Martin was a second stringer compared to previous U.S. ambassadors and his appointment was an early signal that Washington had given up on Vietnam. During his confirmation hearings in June 1973, Secretary of Defense James R. Schlesinger stated that he would recommend resumption of U.S. bombing in North Vietnam if North Vietnam launched a major offensive against South Vietnam. On 4 June 1973, the U.S. Senate passed the Case-Church Amendment to prohibit such intervention.

The oil price shock of October 1973 caused significant damage to the South Vietnamese economy. The Vietcong resumed offensive operations when dry season began and by January 1974 it had recaptured the territory it lost during the previous dry season. After two clashes that left 55 South Vietnamese soldiers dead, President Thiệu announced on 4 January that the war had restarted and that the Paris Peace Accord was no longer in effect. There had been over 25,000 South Vietnamese casualties during the ceasefire period.

Gerald Ford took over as U.S. president on 9 August 1974 after President Nixon resigned due to the Watergate scandal. At this time, Congress cut financial aid to South Vietnam from $1 billion a year to $700 million. The U.S. midterm elections in 1974 brought in a new Congress dominated by Democrats who were even more determined to confront the president on the war. Congress immediately voted in restrictions on funding and military activities to be phased in through 1975 and to culminate in a total cutoff of funding in 1976.

The success of the 1973–74 dry season offensive inspired Trà to return to Hanoi in October 1974 and plead for a larger offensive in the next dry season. This time, Trà could travel on a drivable highway with regular fueling stops, a vast change from the days when the Ho Chi Minh Trail was a dangerous mountain trek. Giáp, the North Vietnamese defense minister, was reluctant to approve Trà's plan. A larger offensive might provoke a U.S. reaction and interfere with the big push planned for 1976. Trà appealed over Giáp's head to first secretary Lê Duẩn, who approved of the operation.

Trà's plan called for a limited offensive from Cambodia into Phuoc Long Province. The strike was designed to solve local logistical problems, gauge the reaction of South Vietnamese forces, and determine whether U.S. would return to the fray.

On 13 December 1974, North Vietnamese forces attacked Route 14 in Phuoc Long Province. Phuoc Binh, the provincial capital, fell on 6 January 1975. Ford desperately asked Congress for funds to assist and re-supply the South before it was overrun. Congress refused. The fall of Phuoc Binh and the lack of an American response left the South Vietnamese elite demoralized.

The speed of this success led the Politburo to reassess its strategy. It was decided that operations in the Central Highlands would be turned over to General Văn Tiến Dũng and that Pleiku should be seized, if possible. Before he left for the South, Dũng was addressed by Lê Duẩn: "Never have we had military and political conditions so perfect or a strategic advantage as great as we have now."

At the start of 1975, the South Vietnamese had three times as much artillery and twice the number of tanks and armoured cars as the opposition. They also had 1,400 aircraft and a two-to-one numerical superiority in combat troops over their Communist enemies. However, the rising oil prices meant that much of this could not be used. They faced a well-organized, highly determined and well-funded North Vietnam. Much of the North's material and financial support came from the communist bloc. Within South Vietnam, there was increasing chaos. Their abandonment by the American military had compromised an economy dependent on U.S. financial support and the presence of a large number of U.S. troops. South Vietnam suffered from the global recession that followed the Arab oil embargo.

Campaign 275

On 10 March 1975, General Dung launched Campaign 275, a limited offensive into the Central Highlands, supported by tanks and heavy artillery. The target was Buôn Ma Thuột, in Đắk Lắk Province. If the town could be taken, the provincial capital of Pleiku and the road to the coast would be exposed for a planned campaign in 1976. The ARVN proved incapable of resisting the onslaught, and its forces collapsed on 11 March. Once again, Hanoi was surprised by the speed of their success. Dung now urged the Politburo to allow him to seize Pleiku immediately and then turn his attention to Kon Tum. He argued that with two months of good weather remaining until the onset of the monsoon, it would be irresponsible to not take advantage of the situation.

President Nguyễn Văn Thiệu, a former general, was fearful that his forces would be cut off in the north by the attacking communists; Thieu ordered a retreat. The president declared this to be a "lighten the top and keep the bottom" strategy. But in what appeared to be a repeat of Operation Lam Son 719, the withdrawal soon turned into a bloody rout. While the bulk of ARVN forces attempted to flee, isolated units fought desperately. ARVN General Phu abandoned Pleiku and Kon Tum and retreated toward the coast, in what became known as the "column of tears".

As the ARVN tried to disengage from the enemy, refugees mixed in with the line of retreat. The poor condition of roads and bridges, damaged by years of conflict and neglect, slowed Phu's column. As the North Vietnamese forces approached, panic set in. Often abandoned by the officers, the soldiers and civilians were shelled incessantly. The retreat degenerated into a desperate scramble for the coast. By 1 April the "column of tears" was all but annihilated.

On 20 March, Thieu reversed himself and ordered Huế, Vietnam's third-largest city, be held at all costs, and then changed his policy several times. Thieu's contradictory orders confused and demoralized his officer corps. As the North Vietnamese launched their attack, panic set in, and ARVN resistance withered. On 22 March, the VPA opened the siege of Huế. Civilians flooded the airport and the docks hoping for any mode of escape. Some even swam out to sea to reach boats and barges anchored offshore. In the confusion, routed ARVN soldiers fired on civilians to make way for their retreat.

On 25 March, after a three-day battle, Huế fell. As resistance in Huế collapsed, North Vietnamese rockets rained down on Da Nang and its airport. By 28 March, 35,000 VPA troops were poised to attack the suburbs. By 30 March 100,000 leaderless ARVN troops surrendered as the VPA marched victoriously through Da Nang. With the fall of the city, the defense of the Central Highlands and Northern provinces came to an end.

Final North Vietnamese offensive

With the northern half of the country under their control, the Politburo ordered General Dung to launch the final offensive against Saigon. The operational plan for the Ho Chi Minh Campaign called for the capture of Saigon before 1 May. Hanoi wished to avoid the coming monsoon and prevent any redeployment of ARVN forces defending the capital. Northern forces, their morale boosted by their recent victories, rolled on, taking Nha Trang, Cam Ranh, and Da Lat.

On 7 April, three North Vietnamese divisions attacked Xuan Loc, 40 miles (64 km) east of Saigon. The North Vietnamese met fierce resistance at Xuan Loc from the ARVN 18th Division, who were outnumbered six to one. For two bloody weeks, severe fighting raged as the ARVN defenders made a last stand to try to block the North Vietnamese advance. By 21 April, however, the exhausted garrison were ordered to withdraw towards Saigon.

An embittered and tearful President Thieu resigned on the same day, declaring that the United States had betrayed South Vietnam. In a scathing attack, he suggested U.S. Secretary of State Henry Kissinger had tricked him into signing the Paris peace agreement two years ago, promising military aid that failed to materialise. Having transferred power to Tran Van Huong, he left for Taiwan on 25 April. At the same time, North Vietnamese tanks had reached Bien Hoa and turned toward Saigon, brushing aside isolated ARVN units along the way.

By the end of April, the ARVN had collapsed on all fronts except in the Mekong Delta. Thousand of refugees streamed southward, ahead of the main communist onslaught. On 27 April 100,000 North Vietnamese troops encircled Saigon. The city was defended by about 30,000 ARVN troops. To hasten a collapse and foment panic, the VPA shelled the airport and forced its closure. With the air exit closed, large numbers of civilians found that they had no way out.

Fall of Saigon

Chaos, unrest, and panic broke out as hysterical South Vietnamese officials and civilians scrambled to leave Saigon. Martial law was declared. American helicopters began evacuating South Vietnamese, U.S., and foreign nationals from various parts of the city and from the U.S. embassy compound. Operation Frequent Wind had been delayed until the last possible moment, because of U.S. Ambassador Graham Martin's belief that Saigon could be held and that a political settlement could be reached.

Schlesinger announced early in the morning of 29 April 1975 the evacuation from Saigon by helicopter of the last U.S. diplomatic, military, and civilian personnel. Frequent Wind was arguably the largest helicopter evacuation in history. It began on 29 April, in an atmosphere of desperation, as hysterical crowds of Vietnamese vied for limited space. Martin pleaded with Washington to dispatch $700 million in emergency aid to bolster the regime and help it mobilize fresh military reserves. But American public opinion had soured on this conflict.

In the United States, South Vietnam was perceived as doomed. President Gerald Ford had given a televised speech on 23 April, declaring an end to the Vietnam War and all U.S. aid. Frequent Wind continued around the clock, as North Vietnamese tanks breached defenses on the outskirts of Saigon. In the early morning hours of 30 April, the last U.S. Marines evacuated the embassy by helicopter, as civilians swamped the perimeter and poured into the grounds. Many of them had been employed by the Americans and were left to their fate.

On 30 April 1975, VPA troops overcame all resistance, quickly capturing key buildings and installations. A tank crashed through the gates of the Independence Palace, and at 11:30 a.m. local time the NLF flag was raised above it. President Duong Van Minh, who had succeeded Huong two days earlier, surrendered. His surrender marked the end of 116 years of Vietnamese involvement in conflict either alongside or against various countries, primarily France, China, Japan, Britain, and America.

Other countries' involvement

Pro-Hanoi

People's Republic of China

In 1950, the People's Republic of China extended diplomatic recognition to the Viet Minh's Democratic Republic of Vietnam and sent weapons, as well as military advisors led by Luo Guibo to assist the Viet Minh in its war with the French. The first draft of the 1954 Geneva Accords was negotiated by French Prime Minister Pierre Mendès France and Chinese Premier Zhou Enlai who, fearing U.S. intervention, urged the Viet Minh to accept a partition at the 17th parallel.

China's ability to aid the Viet Minh declined when Soviet aid to China was reduced following the end of the Korean War in 1953. Moreover, a divided Vietnam posed less of a threat to China. China provided material and technical support to the Vietnamese communists worth hundreds of millions of dollars. Chinese-supplied rice allowed North Vietnam to pull military-age men from the paddies and to impose a universal draft beginning in 1960.

In the summer of 1962, Mao Zedong agreed to supply Hanoi with 90,000 rifles and guns free of charge. Starting in 1965, China sent anti-aircraft units and engineering battalions to North Vietnam to repair the damage caused by American bombing, rebuild roads and railroads, and to perform other engineering works. This freed North Vietnamese army units for combat in the South.

Sino-Soviet relations soured after the Soviets invaded Czechoslovakia in August 1968. In October, the Chinese demanded North Vietnam cut relations with Moscow, but Hanoi refused. The Chinese began to withdraw in November 1968 in preparation for a clash with the Soviets, which occurred at Zhenbao Island in March 1969. The Chinese also began financing the Khmer Rouge as a counterweight to the Vietnamese communists at this time. China's withdrawal from Vietnam was completed in July 1970.

The Khmer Rouge launched ferocious raids into Vietnam in 1975–1978. Vietnam responded with an invasion that toppled the Khmer Rouge. In response, China launched a brief, punitive invasion of Vietnam in 1979.

Soviet Union

Soviet ships in the South China Sea gave vital early warnings to NLF forces in South Vietnam. The Soviet intelligence ships would pick up American B-52 bombers flying from Okinawa and Guam. Their airspeed and direction would be noted and then relayed to COSVN headquarters. COSVN using airspeed and direction would calculate the bombing target and tell any assets to move "perpendicularly to the attack trajectory." These advance warning gave them time to move out of the way of the bombers and while the bombing runs caused extensive damage, because of the early warnings from 1968–1970 they did not kill a single military or civilian leader in the headquarter complexes.

The Soviet Union supplied North Vietnam with medical supplies, arms, tanks, planes, helicopters, artillery, anti-aircraft missiles and other military equipment. Soviet crews fired USSR-made surface-to-air missiles at the B-52 bombers, which were the first raiders shot down over Hanoi. Fewer than a dozen Soviet citizens lost their lives in this conflict. Following the collapse of the Soviet Union in 1991, Russian officials acknowledged that the Soviet Union had stationed up to 3,000 troops in Vietnam during the war.

Some Russian sources give more specific numbers: the hardware donated by the USSR included 2,000 tanks, 7,000 artillery guns, over 5,000 anti-aircraft guns, 158 surface-to-air rocket launchers. Over the course of the war the Soviet money donated to the Vietnamese cause was equal to 2 million dollars a day. From July 1965 to the end of 1974, fighting in Vietnam was attended by some 6,500 officers and generals, as well as more than 4,500 soldiers and sergeants of the Soviet Armed Forces. In addition, military schools and academies of the USSR began training Vietnamese soldiers — more than 10 thousand people.

North Korea

As a result of a decision of the Korean Workers' Party in October 1966, in early 1967 North Korea sent a fighter squadron to North Vietnam to back up the North Vietnamese 921st and 923rd fighter squadrons defending Hanoi. They stayed through 1968, and 200 pilots were reported to have served.

In addition, at least two anti-aircraft artillery regiments were sent as well. North Korea also sent weapons, ammunition and two million sets of uniforms to their comrades in North Vietnam. Kim Il-sung is reported to have told his pilots to "fight in the war as if the Vietnamese sky were their own".

Cuba

The extent of manpower contributions to North Vietnam by the communist Republic of Cuba, under Fidel Castro, is still a matter of debate. Then and since, the communist Vietnamese and Cuban governments have not divulged any information on this matter. There are numerous reports by former U.S. prisoners of war that Cuban military personnel were present at North Vietnamese prison facilities during the war, and that they participated in torture activities, in what is known as the "Cuba Program". Witnesses to this include Senator John McCain, 2008 U.S. Presidential candidate and former Vietnam prisoner of war, according to his 1999 book ''Faith of My Fathers''. That there was at least a small contingent of Cuban military advisors present in North Vietnam during the war is without question. Some, notably Vietnam War POW/MIA issue advocates, claim evidence that Cuba's military and non-military involvement may have run into the "thousands" of personnel.

Pro-Saigon

South Korea

On the anti-communist side, South Korea had the second-largest contingent of foreign troops in South Vietnam after the United States. In November 1961, Park Chung Hee proposed South Korean participation in the war to John F. Kennedy, but Kennedy disagreed. On May 1, 1964 Lyndon Johnson requested South Korean participation. The first South Korean troops began arriving in 1964 and large combat battalions began arriving a year later, with the South Koreans soon developing a reputation for effectiveness. Indeed arguably, they conducted counterinsurgency operations so well that American commanders felt that Korean area of responsibility was the safest.

Approximately 320,000 South Korean soldiers were sent to Vietnam, each serving a one year tour of duty. Maximum troop levels peaked at 50,000 in 1968, however all were withdrawn by 1973. About 5,000 South Koreans were killed and 11,000 were injured during the war. South Korea killed 41,000 Viet Congs. United States paid South Korean soldiers 235,560,000 dollars for their service in Vietnam, and South Korean GNP increased five times during the war.

Australia and New Zealand

Australia and New Zealand, close allies of the United States and members of the Southeast Asia Treaty Organization (SEATO) and the ANZUS military co-operation treaty, sent ground troops to Vietnam. Both nations had gained experience in counterinsurgency and jungle warfare during the Malayan Emergency and World War II. Their governments subscribed to the Domino theory. Australia began by sending advisors to Vietnam in 1962, and combat troops were committed in 1965. New Zealand began by sending a detachment of engineers and an artillery battery, and then started sending special forces and regular infantry which were attached to Australian formations. Australia's peak commitment was 7,672 combat troops and New Zealand's 552. More than 60,000 Australian personnel were involved during the course of the war, of which 521 were killed and more than 3,000 wounded. Approximately 3,000 New Zealanders served in Vietnam, losing 37 killed and 187 wounded. Most Australians and New Zealanders served in the 1st Australian Task Force in Phước Tuy province.

Philippines

Some 10,450 Filipino troops were dispatched to South Vietnam. They were primarily engaged in medical and other civilian pacification projects. These forces operated under the designation PHLCAG-V or Philippine Civic Action Group-Vietnam.

Thailand

Thai Army formations, including the "Queen's Cobra" battalion, saw action in South Vietnam between 1965 and 1971. Thai forces saw much more action in the covert war in Laos between 1964 and 1972, though Thai regular formations there were heavily outnumbered by the irregular "volunteers" of the CIA-sponsored Police Aerial Reconnaissance Units or PARU, who carried out reconnaissance activities on the western side of the Ho Chi Minh Trail.

Republic of China (Taiwan)

Since November 1967, the Republic of China (Taiwan) secretly operated a cargo transport detachment to assist the United States and the ROV.

Taiwan also provided military training units for the South Vietnamese diving units, later known as the Lien Doi Nguoi Nhai (LDMN) or ''Frogman unit'' in English. In addition to the diving trainers there were several hundred military personnel. Military commandos from Taiwan were captured by communist forces three times trying to infiltrate North Vietnam.

Canada and the ICC

Canada, India and Poland comprised the International Control Commission, which was supposed to monitor the 1954 ceasefire agreement. Officially, Canada did not have partisan involvement in the Vietnam War and diplomatically it was "non-belligerent". Victor Levant suggested otherwise in his book ''"Quiet Complicity: Canadian Involvement in the Vietnam War" (1986)''.

Women in Vietnam

American nurses

During the Vietnam War, women served on active duty doing a variety of jobs. Early in 1963, the Army Nurse Corps (ANC) launched Operation Nightingale, an intensive effort to recruit nurses to serve in Vietnam. Most nurses who volunteered to serve in Vietnam came from predominantly working or middle class families with histories of military service. The majority of these women were white Catholics and Protestants. Because the need for medical aid was great, many nurses underwent a concentrated four-month training program before being deployed to Vietnam in the ANC Due to the shortage of staff, nurses usually worked twelve-hour shifts, six days per week and often suffered from exhaustion. 1st Lieutenant Sharon Lane was the only female military nurse to be killed by enemy gunfire during the war. She died on June 8, 1969.

At the start of the Vietnam War, it was commonly thought that American women had no place in the military. Their traditional place had been in the domestic sphere, but with the war came opportunity for the expansion of gender roles. In Vietnam, women held a variety of jobs which included operating complex data processing equipment and serving as stenographers. Although a small number of women were assigned to combat zones, they were never allowed directly in the field of battle. The women who served in the military were solely volunteers. They faced a plethora of challenges, one of which was the relatively small number of female soldiers. Living in a male-dominated environment created tensions between the sexes. While this high male to female ratio was often uncomfortable for women, many men reported that having women in the field with them boosted their morale. Although this was not the women’s purpose, it was one positive result of the their service.

By 1973, approximately 7,500 women had served in Vietnam in the Southeast Asian theater. In that same year, the military lifted the prohibition on women entering the armed forces. However, women were gradually granted greater mobility within the military, and by the end of 1978, the Coast Guard removed all limitations on assignments based on sex. (334) However, it was not until 1993 that Congress allowed women to serve in combat units in the air force. Women in the army today are still prohibited from serving in combat positions.

American women serving in Vietnam were subject to societal stereotypes. Many Americans either considered female in Vietnam mannish for living under the army discipline, or judged them to be women of questionable moral character who enlisted for the sole purpose of seducing men. To address this problem, the ANC released advertisements portraying women in the ANC as “proper, professional and well protected.” (26) This effort to highlight the positive aspects of a nursing career reflected the ideas of second-wave feminism that occurred during the 1960s-1970s in the United States. Although female military nurses lived in a heavily male environment, very few cases of sexual harassment were ever reported. This does not mean that harassment never occurred; rather, there are few cases that have been officially documented by the military. In 2008, by contrast, approximately one-third of women in the military felt that they had been sexually harassed compared with one-third of men.

Vietnamese women

Unlike the American women who went to Vietnam, Vietnamese women fought in the combat zone as well as provided manual labor to keep the Ho Chi Minh Trail open; they also worked in the rice fields to provide food for their families and the war effort. Women were enlisted in both the North Vietnamese Army (NVA) and the VietCong guerrilla force in South Vietnam.

Nguyen Thi Dinh was an example of a woman who had fought most of her adult life against foreign forces in her country. She was a member of the Vietminh fighting against the French and was imprisoned in the 1940s but on her release continued to fight and led a revolt in 1945 in Ben Tre and also in 1960 against Diems government. In the mid 1960s, she became a deputy commander of the Viet Cong, the highest ranking combat position held by a woman during the war.

Nguyen Thi Duc Hoan, who would later go on to be an actress-director, also joined the fight at a young age and would later become a guerrilla fighter against the Americans, at the time her own daughter was training in the militia.

Weapons

Communist forces were principally armed with Chinese and Soviet weaponry though some Viet Cong guerrilla units were equipped with Western infantry weapons either captured from French stocks during the first Indochina war or from ARVN units or requisitioned through illicit purchase. The ubiquitous Soviet AK-47 was widely regarded as the best assault rifle of the war and it was not uncommon to see U.S. special forces with captured AK-47s. The American M16, which replaced the M14, was considered more accurate and was lighter than the AK-47 but was prone to jamming. Oftentimes the gun suffered from a jamming flaw known as “failure to extract,” which meant that a spent cartridge case remained lodged in the chamber after a bullet flew out the muzzle. According to a congressional report, the jamming was caused primarily by a change in gunpowder which was done without adequate testing and reflected a decision for which the safety of soldiers was a secondary consideration. The heavily armored, 90mm M48A3 Patton tank tank saw extensive action during the Vietnam War and over 600 were deployed with US Forces. They played an important role in infantry support though there were few actual tank versus tank battles. The M67A1 flamethrower tank (nicknamed the Zippo) was an M48 variant used in Vietnam. Artillery was used extensively by both sides but the Americans were able to ferry the lightweight 105mm M102 howitzer by helicopter to remote locations on quick notice. With its range, the Soviet 130mm M-46 towed field gun was a highly regarded weapon and used to good effect by the NVA. It was countered by the long-range, American 175mm M107 Self-Propelled Gun. The United States had air superiority though many aircraft were lost to surface-to-air missiles and anti-aircraft artillery. U.S. air power was credited with breaking the siege of Khe Sanh and blunting the 1972 Communist offensive against South Vietnam. At sea, the U.S. Navy had the run of the coastline, using aircraft carriers as platforms for offshore strikes and other naval vessels for offshore artillery support. Offshore naval fire played a pivotal role in the Battle for the city of Hue, providing accurate fire in support of the U.S. counter-offensive to retake the city. The Vietnam War was the first conflict that saw wide scale tactical deployment of helicopters. The Bell UH-1 Iroquois was used extensively in counter-guerilla operations both as a troop carrier and a gunship. |- ! Infantry weapons | MAT-49, SKS, AK-47, RPK, RPD, DShK HMG, RPG-7, RPG-2, B-10 recoilless rifle and B-11 recoilless rifle || M14, M16, M79 grenade launcher, M60 machine gun, M2 Browning, LAW, M18 Claymore anti-personnel mines, TOW, and M40 recoilless rifle, L1A1 SLR (ADF), Owen Gun (ADF) |- ! Air-to-Air Missiles | Vympel K-13 || AIM-9 Sidewinder, AIM-7 Sparrow |- ! Air-to-Surface Missiles | || AGM-45 Shrike anti radiation missile, AGM-12 Bullpup, AGM-78 Standard ARM, AGM-62 Walleye, Zuni rocket |- ! Specialized weapons | IEDs || BLU-82 Daisy Cutter, Laser-guided bombs, Napalm |}

Aftermath

Events in Southeast Asia

Phnom Penh, the capital of Cambodia, fell to followers of the Communist Party of Kampuchea, commonly known as the Khmer Rouge, on 17 April 1975. Over the next four years, the Khmer Rouge enacted a genocidal policy that killed over one-fifth of all Cambodians, or more than a million people. After repeated border clashes in 1978, Vietnam invaded Democratic Kampuchea (Cambodia) and ousted the Khmer Rouge in the Cambodian–Vietnamese War.

In response, China invaded Vietnam in 1979. The two countries fought a brief border war, known as the Third Indochina War or the Sino-Vietnamese War. From 1978 to 1979, some 450,000 ethnic Chinese left Vietnam by boat as refugees or were expelled across the land border with China.

The Pathet Lao overthrew the royalist government of Laos in December 1975. They established the Lao People's Democratic Republic. From 1975 to 1996, the United States resettled some 250,000 Lao refugees from Thailand, including 130,000 Hmong.

More than 3 million people fled from Vietnam, Laos, and Cambodia, many as "boat people". Most Asian countries were unwilling to accept refugees. Since 1975, an estimated 1.4 million refugees from Vietnam and other Southeast Asian countries have been resettled to the United States, while Canada, Australia, and France resettled over 500,000.

Effect on the United States

In the post-war era, Americans struggled to absorb the lessons of the military intervention. As General Maxwell Taylor, one of the principal architects of the war, noted "first, we didn't know ourselves. We thought that we were going into another Korean War, but this was a different country. Secondly, we didn't know our South Vietnamese allies... And we knew less about North Vietnam. Who was Ho Chi Minh? Nobody really knew. So, until we know the enemy and know our allies and know ourselves, we'd better keep out of this kind of dirty business. It's very dangerous."

Some have suggested that "the responsibility for the ultimate failure of this policy [America's withdrawal from Vietnam] lies not with the men who fought, but with those in Congress..." Alternatively, the official history of the United States Army noted that "tactics have often seemed to exist apart from larger issues, strategies, and objectives. Yet in Vietnam the Army experienced tactical success and strategic failure... The...Vietnam War...legacy may be the lesson that unique historical, political, cultural, and social factors always impinge on the military...Success rests not only on military progress but on correctly analyzing the nature of the particular conflict, understanding the enemy's strategy, and assessing the strengths and weaknesses of allies. A new humility and a new sophistication may form the best parts of a complex heritage left to the Army by the long, bitter war in Vietnam."

U.S. Secretary of State Henry Kissinger wrote in a secret memo to President Gerald Ford that "in terms of military tactics, we cannot help draw the conclusion that our armed forces are not suited to this kind of war. Even the Special Forces who had been designed for it could not prevail." Even Secretary of Defense Robert McNamara concluded that "the achievement of a military victory by U.S. forces in Vietnam was indeed a dangerous illusion."

Doubts surfaced as to the effectiveness of large-scale, sustained bombing. As Army Chief of Staff Harold Keith Johnson noted, "if anything came out of Vietnam, it was that air power couldn't do the job." Even General William Westmoreland admitted that the bombing had been ineffective. As he remarked, "I still doubt that the North Vietnamese would have relented."

The inability to bomb Hanoi to the bargaining table also illustrated another U.S. miscalculation. The North's leadership was composed of hardened communists who had been fighting for independence for thirty years. They had defeated the French, and their tenacity as both nationalists and communists was formidable. Ho Chi Minh is quoted as saying, "You can kill ten of my men for every one I kill of yours...But even at these odds you will lose and I will win." The Vietnam War called into question the U.S. Army doctrine. Marine Corps General Victor H. Krulak heavily criticised Westmoreland's attrition strategy, calling it "wasteful of American lives... with small likelihood of a successful outcome." As well, doubts surfaced about the ability of the military to train foreign forces.

Between 1965 and 1975, the United States spent $111 billion on the war ($686 billion in FY2008 dollars). This resulted in a large federal budget deficit.

More than 3 million Americans served in the Vietnam War, some 1.5 million of whom actually saw combat in Vietnam. James E. Westheider wrote that "At the height of American involvement in 1968, for example, there were 543,000 American military personnel in Vietnam, but only 80,000 were considered combat troops." Conscription in the United States had been controlled by the President since World War II, but ended in 1973."

By war's end, 58,220 soldiers were killed, According to Dale Kueter, "Sixty-one percent of those killed were age 21 or younger. Of those killed in combat, 86.3 percent were white, 12.5 percent were black and the remainder from other races." Approximately 830,000 Vietnam veterans suffered symptoms of posttraumatic stress disorder. An estimated 125,000 Americans fled to Canada to avoid the Vietnam draft, and approximately 50,000 American servicemen deserted. In 1977, United States President Jimmy Carter granted a full, complete and unconditional pardon to all Vietnam-era Draft dodgers. The Vietnam War POW/MIA issue, concerning the fate of U.S. service personnel listed as missing in action, persisted for many years after the war's conclusion.

Chemical defoliation

One of the most controversial aspects of the U.S. military effort in Southeast Asia was the widespread use of chemical defoliants between 1961 and 1971. They were used to defoliate large parts of the countryside. These chemicals continue to change the landscape, cause diseases and birth defects, and poison the food chain.

Early in the American military effort it was decided that since the enemy were hiding their activities under triple-canopy jungle, a useful first step might be to defoliate certain areas. This was especially true of growth surrounding bases (both large and small) in what became known as Operation Ranch Hand. Corporations like Dow Chemical Company and Monsanto were given the task of developing herbicides for this purpose.

The defoliants, which were distributed in drums marked with color-coded bands, included the "Rainbow Herbicides"—Agent Pink, Agent Green, Agent Purple, Agent Blue, Agent White, and, most famously, Agent Orange, which included dioxin as a by-product of its manufacture. About 12 million gallons (45,000,000 L) of Agent Orange were sprayed over Southeast Asia during the American involvement. A prime area of Ranch Hand operations was in the Mekong Delta, where the U.S. Navy patrol boats were vulnerable to attack from the undergrowth at the water's edge.

In 1961 and 1962, the Kennedy administration authorized the use of chemicals to destroy rice crops. Between 1961 and 1967, the U.S. Air Force sprayed 20 million U.S. gallons (75,700,000 L) of concentrated herbicides over 6 million acres (24,000 km²) of crops and trees, affecting an estimated 13% of South Vietnam's land. In 1965, 42% of all herbicide was sprayed over food crops. Another purpose of herbicide use was to drive civilian populations into RVN-controlled areas.

As of 2006, the Vietnamese government estimates that there are over 4,000,000 victims of dioxin poisoning in Vietnam, although the United States government denies any conclusive scientific links between Agent Orange and the Vietnamese victims of dioxin poisoning. In some areas of southern Vietnam dioxin levels remain at over 100 times the accepted international standard.

The U.S. Veterans Administration has listed prostate cancer, respiratory cancers, multiple myeloma, Diabetes mellitus type 2, B-cell lymphomas, soft-tissue sarcoma, chloracne, porphyria cutanea tarda, peripheral neuropathy, and spina bifida in children of veterans exposed to Agent Orange. Although there has been much discussion over whether the use of these defoliants constituted a violation of the laws of war, the defoliants were not considered weapons, since exposure to them did not lead to immediate death or incapacitation.

Casualties

The number of military and civilian deaths from 1955 to 1975 is debated. Some reports fail to include the members of South Vietnamese forces killed in the final campaign, or the Royal Lao Armed Forces, thousands of Laotian and Thai irregulars, or Laotian civilians who all perished in the conflict. They do not include the tens of thousands of Cambodians killed during the civil war or the estimated one and one-half to two million that perished in the genocide that followed Khmer Rouge victory, or the fate of Laotian Royals and civilians after the Pathet Lao assumed complete power in Laos.

In 1995, the Vietnamese government reported that its military forces, including the NLF, suffered 1.1 million dead and 600,000 wounded during Hanoi's conflict with the United States. Civilian deaths were put at two million in the North and South, and economic reparations were demanded. Hanoi concealed the figures during the war to avoid demoralizing the population. Estimates of civilian deaths caused by American bombing in Operation Rolling Thunder range from 52,000 to 182,000. The U.S. military has estimated that between 200,000 and 250,000 South Vietnamese soldiers died in the war.

Popular culture

The Vietnam War has been featured heavily in television, film, video games, and literature in the participant countries. The war also influenced a generation of musicians and songwriters in Vietnam and the United States, both anti-war and pro/anti-communist. The band Country Joe and the Fish recorded "I-Feel-Like-I'm-Fixin'-To-Die Rag" / The "Fish" Cheer in 1965, and it became one of the most influential anti-Vietnam protest anthems.

Trinh Cong Son was a South Vietnamese songwriter famous for his anti-war songs.

See also

Regional:

Cambodian Civil War

Indochina Wars

Laotian Civil War

Mayaguez Incident

North Vietnamese invasion of Laos

General:

History of Cambodia

History of Laos

List of conflicts in Asia

Annotations

Notes

References

Secondary sources

Anderson, David L. ''Columbia Guide to the Vietnam War'' (2004).

Baker, Kevin. "Stabbed in the Back! The past and future of a right-wing myth", ''Harper's Magazine'' (June 2006)

Angio, Joe. ''Nixon a Presidency Revealed'' (2007) The History Channel television documentary

Berman, Larry. ''Lyndon Johnson's War: The Road to Stalemate'' (1991).

Blaufarb, Douglas. ''The Counterinsurgency Era'' (1977) a history of the Kennedy Administration's involvement in South Vietnam.

Brigham, Robert K. ''Battlefield Vietnam: A Brief History'' a PBS interactive website

Buckley, Kevin. "Pacification’s Deadly Price", ''Newsweek'', 19 June 1972. Buzzanco, Bob. "25 Years After End of Vietnam War: Myths Keep Us From Coming To Terms With Vietnam", ''The Baltimore Sun'' (17 April 2000)

Church, Peter ed. ''A Short History of South-East Asia'' (2006).

Cooper, Chester L. ''The Lost Crusade: America in Vietnam'' (1970) a Washington insider's memoir of events.

Demma, Vincent H. "The U.S. Army in Vietnam." ''American Military History'' (1989) the official history of the United States Army. Available online

Duiker, William J. ''The Communist Road to Power in Vietnam'' (1996).

Duncanson, Dennis J. ''Government and Revolution in Vietnam'' (1968).

Fincher, Ernest Barksdale, ''The Vietnam War'' (1980).

Ford, Harold P. ''CIA and the Vietnam Policymakers: Three Episodes, 1962–1968.'' (1998).

Gerdes, Louise I. ed. ''Examining Issues Through Political Cartoons: The Vietnam War'' (2005).

Gettleman, Marvin E.; Franklin, Jane; Young, Marilyn ''Vietnam and America: A Documented History.'' (1995).

Hammond, William. ''Public Affairs: The Military and the Media, 1962–1968'' (1987); ''Public Affairs: The Military and the Media, 1068–1973'' (1995). full-scale history of the war by U.S. Army; much broader than title suggests.

Herring, George C''. America's Longest War: The United States and Vietnam, 1950–1975'' (4th ed 2001), most widely used short history.

Hitchens, Christopher. ''The Vietnam Syndrome''.

; popular history by a former foreign correspondent; strong on Saigon's plans.

Kutler, Stanley ed. ''Encyclopedia of the Vietnam War'' (1996).

Leepson, Marc ed. ''Dictionary of the Vietnam War'' (1999) New York: Webster's New World.

Lewy, Guenter. ''America in Vietnam'' (1978), defends U.S. actions.

Logevall, Fredrik. ''The Origins of the Vietnam War'' (Longman [Seminar Studies in History] 2001).

McMahon, Robert J. ''Major Problems in the History of the Vietnam War: Documents and Essays'' (1995) textbook.

McNamara, Robert, James Blight, Robert Brigham, Thomas Biersteker, Herbert Schandler, ''Argument Without End: In Search of Answers to the Vietnam Tragedy'', (Public Affairs, 1999).

Milne, David. ''America's Rasputin: Walt Rostow and the Vietnam War'' (Hill & Wang, 2008).

Moise, Edwin E. ''Historical Dictionary of the Vietnam War'' (2002).

Moss, George D. ''Vietnam'' (4th ed 2002) textbook.

Moyar, Mark. ''Triumph Forsaken: The Vietnam War, 1954–1965'', (Cambridge University Press; 412 pages; 2006). A revisionist history that challenges the notion that U.S. involvement in Vietnam was misguided; defends the validity of the domino theory and disputes the notion that Ho Chi Minh was, at heart, a nationalist who would eventually turn against his Communist Chinese allies.

Major General Spurgeon Neel. ''Medical Support of the U.S. Army in Vietnam 1965–1970'' (Department of the Army 1991) official medical history

Nulty, Bernard.''The Vietnam War'' (1998) New York: Barnes and Noble.

Palmer, Bruce, Jr. ''The Twenty-Five Year War'' (1984), narrative military history by a senior U.S. general.

Schell, Jonathan. ''The Time of Illusion'' (1976).

Schulzinger, Robert D. ''A Time for War: The United States and Vietnam, 1941–1975'' (1997).

Sorley, Lewis, ''A Better War: The Unexamined Victories and Final Tragedy of America's Last Years in Vietnam'' (1999), based upon still classified tape-recorded meetings of top level US commanders in Vietnam, ISBN 0-15-601309-6

Spector, Ronald. ''After Tet: The Bloodiest Year in Vietnam'' (1992), very broad coverage of 1968.

Summers, Harry G. ''On Strategy: A Critical Analysis of the Vietnam War'', Presidio press (1982), ISBN 0-89141-563-7 (225 pages)

Tucker, Spencer. ed. ''Encyclopedia of the Vietnam War'' (1998) 3 vol. reference set; also one-volume abridgement (2001).

Witz, James J. ''The Tet Offensive: Intelligence Failure in War'' (1991).

Young, Marilyn, B. ''The Vietnam Wars: 1945–1990.'' (1991).

Xiaoming, Zhang. "China's 1979 War With Vietnam: A Reassessment", ''China Quarterly.'' Issue no. 184, (December 2005)

Primary sources

Carter, Jimmy. ''By The President Of The United States Of America, A Proclamation Granting Pardon For Violations Of The Selective Service Act, 4 August 1964 To 28 March 1973'' (21 January 1977)

Central Intelligence Agency. "Laos", ''CIA World Factbook''

Kolko, Gabriel The End of the Vietnam War, 30 Years Later

Eisenhower, Dwight D. ''Mandate for Change.'' (1963) a presidential political memoir

Ho, Chi Minh. "Vietnam Declaration of Independence", ''Selected Works.'' (1960–1962) selected writings

LeMay, General Curtis E. and Kantor, MacKinlay. ''Mission with LeMay'' (1965) autobiography of controversial former Chief of Staff of the United States Air Force

Kissinger, United States Secretary of State Henry A. "Lessons on Vietnam", (1975) secret memoranda to U.S. President Ford

Kim A. O'Connell, ed. ''Primary Source Accounts of the Vietnam War'' (2006)

McCain, John. ''Faith of My Fathers: A Family Memoir'' (1999) *Marshall, Kathryn. ''In the Combat Zone: An Oral History of American Women in Vietnam, 1966–1975'' (1987)

Martin, John Bartlow. ''Was Kennedy Planning to Pull out of Vietnam?'' (1964) oral history for the John F. Kennedy Library, tape V, reel 1.

Myers, Thomas. ''Walking Point: American Narratives of Vietnam'' (1988)

''Public Papers of the Presidents, 1965'' (1966) official documents of U.S. presidents.

Schlesinger, Arthur M. Jr. ''Robert Kennedy and His Times.'' (1978) a first-hand account of the Kennedy administration by one of his principal advisors

Sinhanouk, Prince Norodom. "Cambodia Neutral: The Dictates of Necessity." ''Foreign Affairs.'' (1958) describes the geopolitical situation of Cambodia

Tang, Truong Nhu. ''A Vietcong Memoir'' (1985), revealing account by senior NLF official

Terry, Wallace, ed. ''Bloods: An Oral History of the Vietnam War by Black Veterans'' (1984)

- Total pages: 350

The landmark series Vietnam: A Television History, first broadcast in 1983, is a special presentation of the award-winning PBS history series, American Experience.

''The Pentagon Papers'' (Gravel ed. 5 vol 1971); combination of narrative and secret documents compiled by Pentagon. excerpts

U.S. Department of State. ''Foreign Relations of the United States'' (multivolume collection of official secret documents) vol 1: 1964; vol 2: 1965; vol 3: 1965; vol 4: 1966;

U.S. Department of Defense and the House Committee on Armed Services. ''U.S.-Vietnam Relations, 1945–1967.'' Washington, D.C. Department of Defense and the House Committee on Armed Services, 1971, 12 volumes.

Vann, John Paul ''Quotes from Answers.com'' Lt. Colonel, U.S. Army, DFC, DSC, advisor to the ARVN 7th Division, early critic of the conduct of the war.

Historiography

Hall, Simon, “Scholarly Battles over the Vietnam War,” ''Historical Journal'' 52 (Sept. 2009), 813–29.

External links

American Ethnography – On collecting engraved Zippos from the Vietnam War

Battlefield Vietnam PBS interactive site

Casualties – U.S. vs NVA/VC

Complete text of the Gravel Edition of the Pentagon Papers with supporting documents, maps, and photos

Documents Relating to American Foreign Policy-Vietnam primary sources on U.S. involvement

The Effects of Vietnamization on the Republic of Vietnam's Armed Forces, 1969–1972

Glossary of Military Terms & Slang from the Vietnam War

History of US Interventions, by Derek, Mitchell

Impressions of Vietnam and descriptions of the daily life of a soldier from the oral history of Elliott Gardner, U.S. Army

Sober thoughts on 30 April : The South Vietnam Liberation Front and Hanoi, Myth and Reality Speech by the former Minister of Information of the Republic of Vietnam.

Stephen H. Warner Southeast Asia Photograph Collection at Gettysburg College

Timeline US – Vietnam (1947–2001) in Open-Content project

The U.S. Army in Vietnam the official history of the United States Army

UC Berkeley Library Social Activism Sound Recording Project: Anti-Vietnam War Protests

Vietnam Casualties database searchable by first name, last name and location

Vietnam War Bibliography covers online and published resources

The Vietnam War at The History Channel

Vietnam war timeline comprehensive timeline of the Vietnam War

Virtual Vietnam Archive – Texas Tech University

War, propaganda, and the media: Vietnam

Category:Cambodian Civil War Category:Cold War Category:History of Vietnam Category:Laotian Civil War Category:Military history of the United States Category:Presidency of Dwight D. Eisenhower Category:Presidency of Gerald Ford Category:Presidency of Lyndon B. Johnson Category:Presidency of John F. Kennedy Category:Presidency of Richard Nixon Category:Revolution-based civil wars * * Category:Wars involving Australia Category:Wars involving Cambodia Category:Wars involving Canada Category:Wars involving Germany Category:Wars involving Laos Category:Wars involving New Zealand Category:Wars involving Nicaragua Category:Wars involving North Korea Category:Wars involving the People's Republic of China Category:Wars involving the Philippines Category:Wars involving South Korea Category:Wars involving the Soviet Union Category:Wars involving Spain Category:Wars involving Thailand Category:Wars involving Vietnam

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