Military branches:

National Army (Ejercito Nacional), National Navy (Armada Nacional, includes Naval Aviation, Naval Infantry (Infanteria de Marina, Colmar), and Coast Guard), Colombian Air Force (Fuerza Aerea de Colombia, FAC) (2008)

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 16-49: 11,478,109
females age 16-49: 11,809,279 (2008 est.)

Manpower fit for military service:

males age 16-49: 8,056,336
females age 16-49: 9,919,952 (2008 est.)

Manpower reaching militarily significant age annually:

males age 16-49: 442,403
females age 16-49: 433,192 (2008 est.)

Military expenditures - percent of GDP:

3.4% (2005 est.)