Editors. "Military service becomes compulsory in US". The Literary Encyclopedia. First published 01 March 2010
[http://www.litencyc.com/php/stopics.php?rec=true&UID=10946, accessed 19 June 2013.]
Congress requires all males between 20 and 45 register for military service. Draftees could be exempted from service by paying $300 or providing a substitute.