Military branches: Department of the Army, Department of the Navy (includes Marine Corps), Department of the Air Force note: the Coast Guard is normally subordinate to the Department of Transportation, but in wartime reports to the Department of the Navy
Military manpower - military age: 18 years of age
Military manpower - availability: males age 15-49: 70,819,436 (2001 est.)
Military manpower - fit for military service: NA
Military manpower - reaching military age annually: males: 2,039,414 (2001 est.)