Military branches:

Army, Navy, Air Force, Air Defense Command

Military service age and obligation:

18-30 years of age for male conscript military service; service obligation 12-36 months, followed by a 9-year reserve obligation (2006)

Manpower available for military service:

males age 16-49: 21,247,777
females age 16-49: 20,406,408 (2008 est.)

Manpower fit for military service:

males age 16-49: 18,153,158
females age 16-49: 17,405,837 (2008 est.)

Manpower reaching military service age annually:

males age 16-49: 825,300
females age 16-49: 786,590 (2008 est.)

Military expenditures - percent of GDP:

3.4% (2005 est.)