Singapore - Military

Military Service age and obligation: 
18 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 for enlisted or age 50 for officers (2007)

Manpower available for military service: 
males age 18-49: 1,215,568 (2005 est.) 

Manpower fit for Military Service:
males age 18-49: 982,368 (2005 est.)

Military Expenditures-Percent of GDP: 4.9% (2005 est.)

This information comes from the CIA World Factbook January 2008.