Military branches: Argentine Army, Navy of the Argentine Republic (includes naval aviation and naval infantry), Argentine Air Force (Fuerza Aerea Argentina, FAA) (2005) Military service age and obligation: 18 years of age for voluntary military service; no conscription (2001) Manpower available for military service: males age 18-49: 8,981,886 females age 18-49: 8,883,756 (2005 est.) Manpower fit for military service: males age 18-49: 7,316,038 females age 18-49: 7,442,589 (2005 est.) Manpower reaching military service age annually: males age 18-49: 344,575 females age 18-49: 334,649 (2005 est.) Military expenditures - dollar figure: $4.3 billion (FY99) Military expenditures - percent of GDP: 1.3% (FY00) Military - note: the Argentine military is a well-organized force constrained by the country's prolonged economic hardship; the country has recently experienced a strong recovery, and the military is now implementing "Plan 2000," aimed at making the ground forces lighter and more responsive (2005)