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The United States Army is the largest branch of the United States Armed Forces and performs land-based military operations. It is one of the seven uniformed services of the United States and is designated as the Army of the United States in the United States Constitution, Article 2, Section 2, Clause 1 and United States Code, Title 10, Subtitle B, Chapter 301, Section 3001. As the largest and senior branch of the U.S. military, the modern U.S. Army has its roots in the Continental Army, which was formed to fight the American Revolutionary War —before the U.S. was established as a country. After the Revolutionary War, the Congress of the Confederation created the United States Army on 3 June 1784, to replace the disbanded Continental Army. The United States Army considers itself descended from the Continental Army, and dates its institutional inception from the origin of that armed force in 1775.

United States Army
Emblem of the United States Department of the Army.svg
Emblem of the U.S. Department of the Army
Founded 14 June 1775; 241 years ago (1775-06-14)
Country  United States of America
Type Army
Role Ground-based warfare
Size 475,000 Active personnel (2016)
540,000 Reserve and National Guard personnel (2016)
1,015,000 total (2016)
4,948 aircraft
Part of

U.S. Department of Defense

  • Dept. of the Army
Motto(s) "This We'll Defend"
Colors Black and gold         
March "The Army Goes Rolling Along"
Anniversaries Army Day (14 June)
Engagements

American Revolutionary War
Whiskey Rebellion
Indian Wars
First Barbary War
War of 1812
Patriot War
Mexican–American War
Utah War
Cortina Troubles
Reform War
American Civil War
Las Cuevas War
Spanish–American War
Banana Wars
Philippine–American War
Boxer Rebellion
Border War
World War I
Russian Civil War
World War II
Puerto Rican Nationalist Revolts
Korean War
1958 Lebanon crisis
Operation Power Pack
Vietnam War
Korean DMZ Conflict
Operation Eagle Claw
Multinational Force Lebanon
Invasion of Grenada
Operation Golden Pheasant
Invasion of Panama
Persian Gulf War
Somali Civil War
Kosovo War
Operation Enduring Freedom

Iraq War
War in North-West Pakistan
Pakistan-United States skirmishes
Intervention against ISIS

Syrian Civil War (limited)
Website Army.mil
Commanders
Commander-in-Chief President Barack Obama
Secretary of Defense Ash Carter
Secretary of the Army Eric Fanning
Under Secretary of the Army Patrick J. Murphy
Chief of Staff GEN Mark A. Milley
Vice Chief of Staff GEN Dan Allyn
Sergeant Major of the Army SMA Daniel A. Dailey
Insignia
Flag Flag of the United States Army.svg
Identification
symbol
US Army logo.svg

The United States Army (USA) is the largest branch of the United States Armed Forces and performs land-based military operations. It is one of the seven uniformed services of the United States and is designated as the Army of the United States in the United States Constitution, Article 2, Section 2, Clause 1 and United States Code, Title 10, Subtitle B, Chapter 301, Section 3001. As the largest and senior branch of the U.S. military, the modern U.S. Army has its roots in the Continental Army, which was formed (14 June 1775) to fight the American Revolutionary War (1775–1783)—before the U.S. was established as a country. After the Revolutionary War, the Congress of the Confederation created the United States Army on 3 June 1784, to replace the disbanded Continental Army. The United States Army considers itself descended from the Continental Army, and dates its institutional inception from the origin of that armed force in 1775.

As a uniformed military service, the Army is part of the Department of the Army, which is one of the three military departments of the Department of Defense. The U.S. Army is headed by a civilian senior appointed civil servant, the Secretary of the Army (SECARMY), and by a chief military officer, the Chief of Staff of the Army (CSA) who is also a member of the Joint Chiefs of Staff. In the fiscal year 2017, the projected end strength for the Regular Army (USA) was 460,000 soldiers; the Army National Guard (ARNG) had 335,000 soldiers, and the United States Army Reserve (USAR) had 195,000 soldiers; the combined-component strength of the U.S. Army was 990,000 soldiers. As a branch of the armed forces, the mission of the U.S. Army is "to fight and win our Nation's wars, by providing prompt, sustained, land dominance, across the full range of military operations and the spectrum of conflict, in support of combatant commanders." The service participates in conflicts worldwide and is the major ground-based offensive and defensive force.