US troops

United States Armed Forces
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 Donald Trump
Secretary of Defense	James Mattis
Chairman of the Joint Chiefs of Staff	General Joseph Dunford
Manpower
Military age	17 with parental consent, 18 for voluntary service. Maximum age for first-time 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	1,281,900 (ranked 3rd)
Reserve personnel	811,000
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 New York City draft riots 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 Dominican Civil War Bay of Pigs Invasion Cuban Missile Crisis 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 Operation Gothic Serpent Battle of Mogadishu Bosnian War Operation Deliberate Force Operation Deny Flight Kosovo War Operation Allied Force Global War on Terrorism Operation Enduring Freedom War in Afghanistan Philippines Horn of Africa Trans Sahara Iraq War War in North-West Pakistan Military deployment after Hurricane Katrina 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

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

Persian Gulf War
Somali Civil War

Global War on Terrorism

Military deployment after Hurricane Katrina
Pakistan–United States skirmishes
Intervention against ISIL

...
Wikipedia

...