Military branches:
Republic of Korea Army, Navy (includes Marine Corps), Air Force (2011)
Military service age and obligation:
20-30 years of age for compulsory military service, with middle school education required; minimum conscript service obligation - 21 months (Army, Marines), 23 months (Navy), 24 months (Air Force); 18-26 years of age for voluntary military service; women, in service since 1950, admitted to 7 service branches, including infantry, but excluded from artillery, armor, anti-air, and chaplaincy corps; HIV-positive individuals are exempt from military service (2012)
Military expenditures:
2.8% of GDP (2012)
2.77% of GDP (2011)
2.8% of GDP (2010)
country comparison to the world: 25
[see also: Military expenditures country ranks ]