| 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) and Marines) (2007) |
| 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 (2007) |
| Manpower available for military service: |
males age 18-49: 24,488,008
females age 18-49: 26,128,046 (2005 est.) |
| Manpower fit for military service: |
males age 18-49: 19,058,337
females age 18-49: 21,966,796 (2005 est.) |
| Manpower reaching military service age annually: |
males age 18-49: 1,063,233
females age 18-49: 1,043,816 (2005 est.) |
| Military expenditures - percent of GDP: |
0.5% (2006 est.) |