United StatesMilitary

Military branches: Army, Navy and Marine Corps, Air Force, and Coast Guard (Coast Guard administered in peacetime by the Department of Homeland Security, but in wartime reports to the Department of the Navy) Military manpower - military age and obligation: 18 years of age (2004) Military manpower - availability: males age 18-49: 67,742,879 (2005 est.) Military manpower - fit for military service: males age 18-49: NA (2005 est.) Military manpower - reaching military age annually: males: 2,143,873 (2005 est.) Military expenditures - dollar figure: $370.7 billion (FY04 est.) (March 2003) Military expenditures - percent of GDP: 3.3% (FY03 est.) (February 2004) More about United States: Introduction Geography People Government Economy Communications Transportation Transnational Issues