| Military branches: |
National Army (Ejercito Nacional), National Navy (Armada Nacional, includes naval aviation, marine corps, and coast guard), Colombian Air Force (Fuerza Aerea de Colombia, FAC) (2007) |
| Military service age and obligation: |
18-24 years of age for compulsory and voluntary military service; service obligation - 18 months (2004) |
| Manpower available for military service: |
males age 18-49: 10,212,456
females age 18-49: 10,561,562 (2005 est.) |
| Manpower fit for military service: |
males age 18-49: 6,986,228
females age 18-49: 8,794,465 (2005 est.) |
| Manpower reaching military service age annually: |
males age 18-49: 389,735
females age 18-49: 383,146 (2005 est.) |
| Military expenditures - percent of GDP: |
3.4% (2005 est.) |