150313-N-AT895-231 WASHINGTON, (March 13, 2015) Chief of Naval Operations (CNO) Adm. Jonathan Greenert speaks at a moderated discussion on the Cooperative Strategy for the 21st Century (CS-21 R) at the Center for Strategic and International Studies (CSIS).  Greenert, Commandant of the Marine Corps Gen. Joseph Dunford and Commandant of the Coast Guard Adm. Paul Zukunft talked about how the new strategy will tackle challenges facing the Navy, Marine Corps and Coast Guard. The event is part of the Maritime Security Dialogue series hosted by CSIS and the U.S. Naval Institute (USNI).   U.S. Navy photo by Mass Communication Specialist 1st Class Nathan Laird/Released)
<br>Unit: Navy Media Content Services
Petty Officer 1st Class Nathan Laird
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