Military branches:
Army, Navy (includes Marine Corps), Air Force, Military Police Command, Armed Forces Reserve Command, Coast Guard Administration (2016)

Military service age and obligation:
starting with those born in 1994, males 18-36 years of age may volunteer for military service or must complete 4 months of compulsory military training (or substitute civil service in some cases); women may enlist; women in Air Force service are restricted to noncombat roles; for men born before December 1993, compulsory service (military or civil) is 1 year; for 8 years after discharge, men are subject to training recall four times for periods not to exceed 20 days (2016)