Military branches:
Singapore Armed Forces: Army, Navy, Air Force (includes Air Defence) (2009)

Military service age and obligation:
18-21 years of age for male compulsory military service; 16 years of age for volunteers; 2-year conscript service obligation, with a reserve obligation to age 40 (enlisted) or age 50 (officers) (2008)

Military manpower - availability:
males age 16-49: 1,277,862 (2008 est.)

Military manpower - fit for military service:
males age 16-49: 1,033,961
females age 16-49: 1,104,952 (2009 est.)

Military manpower reaching militarily significant age annually:
male: 27,715
female: 26,290 (2009 est.)

Military expenditures - percent of GDP:
4.9% (2005 est.)