| People | Japan |
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Military branches:
 | Japanese Ministry of Defense (MOD): Ground Self-Defense Force (Rikujou Jietai, GSDF), Maritime Self-Defense Force (Kaijou Jietai, MSDF), Air Self-Defense Force (Koku Jieitai, ASDF) (2008) |
Military service age and obligation:
 | 18 years of age for voluntary military service (2001) |
Manpower available for military service:
 | males age 16-49: 27,819,804 females age 16-49: 26,863,794 (2008 est.) |
Manpower fit for military service:
 | males age 16-49: 22.963 million females age 16-49: 22,134,127 (2008 est.) |
Manpower reaching military service age annually:
 | males age 16-49: 622,168 females age 16-49: 590,153 (2008 est.) |
Military expenditures - percent of GDP:
 | 0.8% (2006) |
Military - note:
 | void |
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