United States Armed Forces
Military service mark of the United States Army.svg Emblem of the United States Marine Corps.svg Emblem of the United States Navy.svg
Military service mark of the United States Air Force.svg Seal of the United States Space Force.svg Seal of the United States Coast Guard.svg
Emblems of the U.S. Armed Forces' service branches
Founded14 June 1775; 247 years ago (1775-06-14)
Service branches
  •  U.S. Army
  •  U.S. Marine Corps
  •  U.S. Navy
  •  U.S. Air Force
  •  U.S. Space Force
  •  U.S. Coast Guard
HeadquartersThe Pentagon, Arlington County, Virginia
Leadership
Commander-in-ChiefPresident Joe Biden
Secretary of DefenseLloyd Austin
Secretary of Homeland SecurityAlejandro Mayorkas
Chairman of the Joint Chiefs of StaffGEN Mark A. Milley, USA
Vice Chairman of the Joint Chiefs of StaffADM Christopher W. Grady, USN
Senior Enlisted Advisor to the ChairmanSEAC Ramón Colón-López, USAF
Personnel
Military age17 with parental consent, 18 for voluntary service.
ConscriptionMale only (inactive since 1973)
Available for
military service
17 million, age 18–25 (2016)
Reaching military
age annually
2 million (2016)
Active personnel1,376,658 (ranked 3rd)
Reserve personnel799,500
Deployed personnel165,000
Expenditures
BudgetUS$782 billion (2022) (ranked 1st)
Percent of GDP3.42% (2019)
Industry
Domestic suppliersList
Related articles
HistoryMilitary history of the United States
List of engagements

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
  • Second Taiwan Strait Crisis
  • 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

1999 East Timorese crisis
Global War on Terrorism

  • Operation Enduring Freedom
    • Afghanistan
    • Philippines
    • Horn of Africa
    • Trans Sahara
  • Iraq War
  • Intervention against ISIL
  • War in North-West Pakistan

Military deployment after Hurricane Katrina
Pakistan–United States skirmishes
Other

RanksCommissioned officer
  • Army officer
  • Marine Corps officer
  • Navy officer
  • Air Force officer
  • Space Force officer
  • Coast Guard officer

Warrant officer

  • Army warrant officer
  • Marine Corps warrant officer
  • Navy warrant officer
  • Coast Guard warrant officer

Enlisted

  • Army enlisted
  • Marine Corps enlisted
  • Navy enlisted
  • Air Force enlisted
  • Space Force enlisted
  • Coast Guard enlisted