The United States Army (
USA) is the main branch of the
United States Armed Forces responsible for land-based military operations. It is the largest and oldest established branch of the
U.S. military, and is one of seven
U.S. uniformed services. The modern army has its roots in the
Continental Army which was formed on 14 June
1775,[4] to meet the demands of the
American Revolutionary War before the establishment of the
United States.
The Congress of the
Confederation officially created the
United States Army on 3 June 1784[5][6] after the end of the
Revolutionary War to replace the disbanded Continental Army. The army considers itself to be descended from the Continental Army and thus dates its inception from the origins of that force.[4]
The primary mission of the army is "to fight and win our
Nation's wars by providing prompt, sustained land dominance across the full range of military operations and spectrum of conflict in support of combatant commanders."[7] The army is a military service within the
Department of the Army, one of the three military departments of the
Department of Defense. The army is headed by the
Secretary of the Army, and the top military officer in the department is the
Chief of Staff of
the Army. The highest ranking army officer is currently the
Chairman of the Joint Chiefs of Staff. During fiscal year
2011, the
Regular Army reported a strength of 546,
057 soldiers; the
Army National Guard (
ARNG) reported 358,078 and the
United States Army Reserve (
USAR) reported
201,166 putting the combined component strength total at 1,105,
301 soldiers.[3]
Origins
The Continental Army was created on 14 June 1775 by the
Continental Congress as a unified army for the colonies to fight
Great Britain, with
George Washington appointed as its commander.[4] The army was initially led by men who had served in the
British Army or colonial militias and who brought much of
British military heritage with them. As the Revolutionary War progressed,
French aid, resources, and military thinking influenced the new army. A number of
European soldiers came on their own to help, such as
Friedrich Wilhelm von Steuben, who taught the army Prussian tactics and organizational skills.
The army fought numerous pitched battles and in the
South 1780--81 sometimes used the
Fabian strategy and hit-and-run tactics, hitting where the enemy was weakest, to wear down the
British forces.
Washington led victories against the
British at
Trenton and
Princeton, but lost a series of battles around
New York City in
1776 and
Philadelphia in 1777. With a decisive victory at
Yorktown, and the help of the French, the Continental Army prevailed against the British.
After the war, though, the Continental Army was quickly given land certificates and disbanded in a reflection of the republican distrust of standing armies.
State militias became the new nation's sole ground army, with the exception of a regiment to guard the
Western Frontier and one battery of artillery guarding
West Point's arsenal. However, because of continuing conflict with
Native Americans, it was soon realized that it was necessary to field a trained standing army. The Regular Army was at first very small, and after
General St. Clair's defeat at the
Battle of the Wabash, the Regular Army was reorganized as the
Legion of the United States, which was established in 1791 and renamed the "United States Army" in 1796.
21st century
After the
September 11 attacks, and as part of the
Global War on Terror, U.S. and
NATO forces invaded
Afghanistan in
2001, displacing the
Taliban government.
The U.S. Army led the combined U.S. and allied
Invasion of Afghanistan in 2001, and
Iraq in
2003. In the following years the mission changed from conflict between regular militaries to counterinsurgency, resulting in the deaths of more than 4,
000 U.S service members (as of
March 2008) and injuries to thousands more.[23][24] 23,
813 insurgents[25] were killed in Iraq between 2003--2011. The lack of stability in the theater of operations has led to longer deployments for Regular Army as well as
Reserve and Guard troops.[citation needed]
The army's chief modernization plan was the
FCS program. Many systems were canceled and the remaining were swept into the
BCT modernization program.[citation needed] In response to
Budget sequestration in 2013 the army is planned to shrink to a size not seen since the
WWII buildup.[26]
Structure
The United States Army is made up of three components: the active component, the Regular Army; and two reserve components, the Army National Guard and the
Army Reserve. Both reserve components are primarily composed of part-time soldiers who train once a month, known as battle assemblies or unit training assemblies (UTAs), and conduct two to three weeks of annual training each year. Both the Regular Army and the Army Reserve are organized under
Title 10 of the
United States Code, while the
National Guard is organized under Title 32.
- published: 13 May 2014
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