Military branches:

Royal Thai Army (RTA), Royal Thai Navy (RTN, includes Royal Thai Marine Corps), Royal Thai Air Force (Knogtap Agard Thai, RTAF) (2008)

Military service age and obligation:

21 years of age for compulsory military service; 18 years of age for voluntary military service; males are registered at 18 years of age; 2-year conscript service obligation (2006)

Manpower available for military service:

males age 16-49: 17,553,410
females age 16-49: 17,751,268 (2008 est.)

Manpower fit for military service:

males age 16-49: 12,968,674
females age 16-49: 14,058,779 (2008 est.)

Manpower reaching militarily significant age annually:

males age 16-49: 531,315
females age 16-49: 511,288 (2008 est.)

Military expenditures - percent of GDP:

1.8% (2005 est.)