Military branches:
National Defense Secretariat (SEDENA) (including Army and Air
Force), Navy Secretariat (including Naval Air and Marines)
Military manpower - military age:
18 years of age
note: starting in 2000, females were allowed to volunteer for
military service (2003 est.)
Military manpower - availability:
males age 15-49: 27,751,539 (2003 est.)
Military manpower - fit for military service:
males age 15-49: 20,123,970 (2003 est.)
Military manpower - reaching military age annually:
males: 1,093,752 (2003 est.)
Military expenditures - dollar figure:
$4 billion (FY99)
Military expenditures - percent of GDP:
1% (FY99)