Benin
note: both sexes are liable for military service
males age 15-49: 1,597,562
females age 15-49: 1,536,036 (2003 est.)
Bhutan
males age 15-49: 530,860 (2003 est.)
Bolivia
males age 15-49: 2,118,908 (2003 est.)
Bosnia and Herzegovina
males age 15-49: 1,132,476 (2003 est.)
Botswana
males age 15-49: 381,056 (2003 est.)
Brazil
males age 15-49: 51,381,048 (2003 est.)
Brunei
males age 15-49: 110,888 (2003 est.)
Bulgaria
males age 15-49: 1,854,049 (2003 est.)
Burkina Faso
males age 15-49: 2,957,710 (2003 est.)
Burma
males age 15-49: 12,349,921
females age 15-49: 12,358,507
note: both sexes liable for military service (2003 est.)