Military branches:
Secretariat of National Defense (Secretaria de Defensa Nacional, Sedena): Army (Ejercito), Mexican Air Force (Fuerza Aerea Mexicana, FAM); Secretariat of the Navy (Secretaria de Marina, Semar): Mexican Navy (Armada de Mexico (ARM), includes Naval Air Force (FAN), Mexican Marine Corps (Cuerpo de Infanteria de Marina, Mexmar or CIM)) (2011)
Military service age and obligation:
18 years of age for compulsory military service, conscript service obligation - 12 months; 16 years of age with consent for voluntary enlistment; conscripts serve only in the Army; Navy and Air Force service is all voluntary; women are eligible for voluntary military service (2007)
Manpower available for military service:
males age 16-49: 28,815,506
[see also: Manpower available for military service - male country ranks ]
females age 16-49:
30,363,558 (2010 est.)
Manpower fit for military service:
males age 16-49: 23,239,866
[see also: Manpower fit for military service - male country ranks ]
females age 16-49:
25,642,549 (2010 est.)
Manpower reaching militarily significant age annually:
male: 1,105,371
[see also: Manpower reaching militarily significant age annually - male country ranks ]
female:
1,067,007 (2010 est.)
Military expenditures:
0.5% of GDP (2006 est.)
country comparison to the world: 159
[see also: Military expenditures country ranks ]