110923-N-OA833-003
ANNAPOLIS, Md. (Sept. 23, 2011) Chief of Naval Operations (CNO) Adm. Jonathan Greenert speaks during the change of command and retirement ceremony of Adm. Gary Roughead held at the U.S. Naval Academy. Adm. Greenert is the 30th Chief of Naval Operations. (U.S. Navy photo by Mass Communication Specialist 1st Class Chad Runge/Released)
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