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Àwọn Iṣẹ́ Ológun Amẹ́ríkà

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United States armed forces
United States Joint Service Color Guard on parade at Fort Myer
United States Joint Service Color Guard on parade at Fort Myer in Arlington County, Virginia.
Service branches United States Army seal U.S. Army

United States Marine Corps seal U.S. Marine Corps
United States Navy Seal U.S. Navy
United States Air Force seal U.S. Air Force
United States Coast Guard seal U.S. Coast Guard

Leadership
Commander-in-Chief President Barack Obama
Secretary of Defense Robert M. Gates
Chairman, Joint Chiefs of Staff Admiral Michael Mullen
Manpower
Military age 17–45 years old[1]
Available for
military service
72,715,332 males, age 18–49 (2008 est.),
71,638,785 females, age 18–49 (2008 est.)
Fit for
military service
59,413,358 males, age 18–49 (2008 est.),
59,187,183 females, age 18–49 (2008 est.)
Reaching military
age annually
2,186,440 males (2008 est.),
2,079,688 females (2008 est.)
Active personnel 1,473,900[2] (ranked 2nd)
Reserve personnel 1,458,500[3]
Expenditures
Budget $692 billion (FY10)[4]
(1st by total expenditure, 27th as percent of GDP)
Percent of GDP 4.7 (2010 est.)
Related articles
History American Revolutionary War
Early national period
Continental expansion
American Civil War
Post-Civil War era
World War I (1917–1918)
World War II (1941–1945)
Cold War (1945–1991)
War on Terrorism (2001–present)
Ranks Army officer

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