| Military branches: |
Army, Navy, Air Force, Air Defense Command |
| Military service age and obligation: |
18 years of age for conscript military service; 3-year service obligation (2001) |
| Manpower available for military service: |
males age 18-49: 18,347,560
females age 18-49: 17,683,904 (2005 est.) |
| Manpower fit for military service: |
males age 18-49: 15,540,234
females age 18-49: 14,939,378 (2005 est.) |
| Manpower reaching military service age annually: |
males age 18-49: 802,920
females age 18-49: 764,176 (2005 est.) |
| Military expenditures - percent of GDP: |
3.4% (2005 est.) |