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United States Military Profile

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Military branches
United States Armed Forces: US Army, US Navy (includes Marine Corps), US Air Force, US Space Force; US Coast Guard (administered in peacetime by the Department of Homeland Security, but in wartime reports to the Department of the Navy); National Guard (Army National Guard and Air National Guard); Reserves (all services) (2020)
Military service age and obligation
18 years of age (17 years of age with parental consent) for male and female voluntary service; no conscription; maximum enlistment age 34 (Army), 39 (Air Force), 39 (Navy), 28 (Marines), 31 (Coast Guard); 8-year service obligation, including 2-5 years active duty (Army), 2 years active (Navy), 4 years active (Air Force, Marines, Coast Guard); all military occupations and positions open to women (2019)
Military expenditures
3.42% of GDP (2019 est.)
3.3% of GDP (2018)
3.31% of GDP (2017)
3.52% of GDP (2016)
3.52% of GDP (2015)

Source: CIA World Factbook
This page was last updated on Friday, November 27, 2020

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