1. 
   Uited States Naval Ship
   (DOD) A public vessel of the United States in the custody of the Navy and is: a. Operated by the Military Sealift Command and manned by a civil service crew. b. Operated by a commercial company under contract to the Military Sealift Command and manned by a merchant marine crew.
   Found op http://www.aboutmilitaryschools.org/military/glossary/u.html
   
   

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