Military branches:

Nigerian Armed Forces: Army, Navy, Air Force (2008)

Military service age and obligation:

18 years of age for voluntary military service (2007)

Manpower available for military service:

males age 16-49: 31,929,204
females age 16-49: 30,638,979 (2008 est.)

Manpower fit for military service:

males age 16-49: 18,556,755
females age 16-49: 17,288,225 (2008 est.)

Manpower reaching militarily significant age annually:

males age 16-49: 1,533,974
females age 16-49: 1,509,619 (2008 est.)

Military expenditures - percent of GDP:

1.5% (2006)