Naval rating

A naval rating is an enlisted member of a country's navy, subordinate to warrant officers and officers hence not conferred by commission or warrant. The naval term comes from the general nautical usage of rating - a seaman's class or grade as recorded in the ship's books, whilst in the United States it is currently used to denote a sailor's occupational specialty.

The system of conferring authority on sailors in the Royal Navy and elsewhere evolved through the recognition of competence; Landsman, Ordinary seaman or Able seaman and through the appointment of authority as a petty officer.

Historically the term rate also applied to ships, denoting their combat strength by the number, and type, of guns.

The general structure now used in the majority of countries breaks down into four major groupings:

Royal Navy

United States Navy and United States Coast Guard

Rate refers to an enlisted sailor's position within the chain of command, as well as his or her pay grade. It is analogous to the term rank as used, for example, in the U.S. Army. However, the term "rank" should not be used in lieu of rate when referring to U.S. naval enlisted personnel.

Navy

A navy or maritime force is a fleet of waterborne military vessels (watercraft) and its associated naval aviation, both sea-based and land-based. It is the branch of a nation's armed forces principally designated for naval and amphibious warfare; namely, lake-borne, riverine, littoral, or ocean-borne combat operations and related functions. It includes anything conducted by surface ships, amphibious ships, submarines, and seaborne aviation, as well as ancillary support, communications, training, and other fields; recent developments have included space-related operations. The strategic offensive role of a navy is projection of force into areas beyond a country's shores (for example, to protect sea-lanes, ferry troops, or attack other navies, ports, or shore installations). The strategic defensive purpose of a navy is to frustrate seaborne projection-of-force by enemies. The strategic task of the navy also may incorporate nuclear deterrence by use of Submarine-launched ballistic missiles. Naval operations can be broadly divided between riverine and littoral applications (brown-water navy), open-ocean applications (blue-water navy), and something in between (green-water navy), although these distinctions are more about strategic scope than tactical or operational division.

United States Navy

The United States Navy (USN) is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States. The U.S. Navy is the largest, most capable navy in the world, with the highest combined battle fleet tonnage. The U.S. Navy has the world's largest aircraft carrier fleet, with ten in service, two in the reserve fleet, and three new carriers under construction. The service has 328,194 personnel on active duty and 101,199 in the Navy Reserve. It has 272 deployable combat vessels and more than 3,700 aircraft in active service as of February 2016.

The U.S. Navy traces its origins to the Continental Navy, which was established during the American Revolutionary War and was essentially disbanded as a separate entity shortly thereafter. It played a major role in the American Civil War by blockading the Confederacy and seizing control of its rivers. It played the central role in the World War II defeat of Japan. The 21st century U.S. Navy maintains a sizable global presence, deploying in such areas as East Asia, the Mediterranean, and the Middle East. It is a blue-water navy with the ability to project force onto the littoral regions of the world, engage in forward areas during peacetime, and rapidly respond to regional crises, making it an active player in U.S. foreign and defense policy.

Royal Navy

The Royal Navy (RN) is the United Kingdom's principal naval warfare force. Naval forces were first used by Alfred the Great in the 9th century, and from the early 14th century England's navy was engaged in maritime warfare. The modern Royal Navy traces its origins to the early 16th century, it is the oldest of the armed services and is known as the Senior Service.

During the 17th century the Royal Navy vied with the French Navy for world supremacy, and from the late 17th century until the mid- 1940s it was the most powerful navy in the world, being surpassed by the US Navy after World War II. The Royal Navy played a key part in establishing the British Empire as the dominant world power during the 17th, 18th, 19th and first part of the 20th centuries. Due to this historical prominence, it is usual – even among non-Britons – to refer to it as "The Royal Navy" without qualification.

Following victory in the First World War, the Royal Navy was significantly reduced in size, although at the onset of the Second World War it was still the largest in the world. By the end of the Second World War, however, the United States Navy had emerged as the world's largest. During the course of the Cold War, the Royal Navy transformed into a primarily anti-submarine force, hunting for Soviet submarines, mostly active in the GIUK gap. Following the collapse of the Soviet Union, its focus has returned to expeditionary operations around the world.

United States

Coordinates: 40°N 100°W / 40°N 100°W / 40; -100

The United States of America (USA), commonly referred to as the United States (U.S.) or America, is a federal republic composed of 50 states, a federal district, five major territories and various possessions. The 48 contiguous states and Washington, D.C., are in central North America between Canada and Mexico. The state of Alaska is in the northwestern part of North America and the state of Hawaii is an archipelago in the mid-Pacific. The territories are scattered about the Pacific Ocean and the Caribbean Sea. At 3.8 million square miles (9.842 million km²) and with over 320 million people, the country is the world's third or fourth-largest by total area and the third most populous. It is one of the world's most ethnically diverse and multicultural nations, the product of large-scale immigration from many countries. The geography and climate of the United States are also extremely diverse, and the country is home to a wide variety of wildlife.