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The United States Armed Forces are the federal armed forces of the United States. They consist of the Army, Marine Corps, Navy, Air Force, and Coast Guard. The President of the United States is the military's overall head, and helps form military policy with the U.S. Department of Defense , a federal executive department, acting as the principal organ by which military policy is carried out.

United States Armed Forces
United States Joint Service Color Guard on parade at Fort Myer
The U.S. Joint Service Color Guard on parade at Fort Myer, Virginia in October 2001.
Service branches United States Army
United States Marine Corps
United States Navy
United States Air Force
United States Coast Guard
Headquarters The Pentagon, Arlington County, Virginia, U.S.
Leadership
Commander-in-Chief President Barack Obama
Secretary of Defense Ash Carter
Chairman of the Joint Chiefs of Staff General Joseph Dunford
Manpower
Military age 17 with parental consent, 18 for voluntary service. Maximum age for enlistment is 35 for the Army, 28 for the Marines, 34 for the Navy, 39 for the Air Force, and 27 for the Coast Guard.
Active personnel 1,492,200 (ranked 2nd)
Reserve personnel 801,200
Expenditures
Budget US$597 billion (2015) (ranked 1st)
Percent of GDP 3.3% (2015)
Industry
Foreign suppliers List
Related articles
History

American Revolutionary War
Whiskey Rebellion
Indian Wars
Barbary Wars
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
Cold War
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
War on Terror
Operation Enduring Freedom

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

Other
Ranks

Army
Army officer
Army warrant officer
Army enlisted
Marines
Marine Corps officer
Marine Corps warrant officer
Marine Corps enlisted
Navy
Navy officer
Navy warrant officer
Navy enlisted
Air Force
Air Force officer
Air Force enlisted
Coast Guard
Coast Guard officer
Coast Guard warrant officer

Coast Guard enlisted

The United States Armed Forces are the federal armed forces of the United States. They consist of the Army, Marine Corps, Navy, Air Force, and Coast Guard. The President of the United States is the military's overall head, and helps form military policy with the U.S. Department of Defense (DoD), a federal executive department, acting as the principal organ by which military policy is carried out.

From the time of its inception, the military played a decisive role in the history of the United States. A sense of national unity and identity was forged as a result of victory in the First Barbary War and the Second Barbary War. Even so, the Founders were suspicious of a permanent military force. It played an important role in the American Civil War, where leading generals on both sides were picked from members of the United States military. Not until the outbreak of World War II did a large standing army become officially established. The National Security Act of 1947, adopted following World War II and during the Cold War's onset, created the modern U.S. military framework; the Act merged previously Cabinet-level Department of War and the Department of the Navy into the National Military Establishment (renamed the Department of Defense in 1949), headed by the Secretary of Defense; and created the Department of the Air Force and National Security Council.

The U.S. military is one of the largest militaries in terms of number of personnel. It draws its personnel from a large pool of paid volunteers; although conscription has been used in the past in various times of both war and peace, it has not been used since 1972. As of 2016, the United States spends about $580.3 billion annually to fund its military forces and Overseas Contingency Operations. Put together, the United States constitutes roughly 40 percent of the world's military expenditures. For the period 2010–14, the Stockholm International Peace Research Institute (SIPRI) found that the United States was the world's largest exporter of major arms, accounting for 31 per cent of global shares. The United States was also the world's eighth largest importer of major weapons for the same period. The U.S. military has significant capabilities in both defense and power projection due to its large budget, resulting in advanced and powerful equipment, and its widespread deployment of force around the world, including about 800 military bases in foreign locations.

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