Military branches:
Japanese Ministry of Defense (MOD): Ground Self-Defense Force (Rikujou Jieitai, GSDF), Maritime Self-Defense Force (Kaijou Jieitai, MSDF), Air Self-Defense Force (Koukuu Jieitai, ASDF) (2011)
Military service age and obligation:
18 years of age for voluntary military service; no conscription; mandatory retirement at age 53 for senior enlisted personnel and at 62 years for senior service officers (2012)
Military expenditures:
0.97% of GDP (2012)
1.01% of GDP (2011)
0.99% of GDP (2010)
country comparison to the world: 102
[see also: Military expenditures country ranks ]