Military branches: Islamic Republic of Iran regular forces (includes Ground Forces, Navy, Air and Air Defense Forces), Revolutionary Guards (includes Ground, Air, Navy, Qods, and Basij-mobilization-forces), Law Enforcement Forces
Military manpower - military age: 21 years of age
Military manpower - availability: males age 15-49: 18,319,328 (2001 est.)
Military manpower - fit for military service: males age 15-49: 10,872,407 (2001 est.)
Military manpower - reaching military age annually: males: 823,040 (2001 est.)