Keywords: US Navy 110923-N-OA833-002 Chief of Naval Operations (CNO) Adm. Gary Roughead speaks during his retirement and change of command ceremony.jpg en ANNAPOLIS Md Sept 23 2011 Chief of Naval Operations CNO Adm Gary Roughead speaks during his retirement and change of command ceremony held at the U S Naval Academy Roughhead became the 29th Chief of Naval Operations Sep 29 2007 He is relieved as CNO by former Vice Chief of Naval Operations Adm Jonathan Greenert U S Navy photo by Mass Communication Specialist 1st Class Chad Runge/Released 2011-09-23 110923-N-OA833-002 Navy http //www navy mil/view_image asp id 107694 U S Navy photo by Mass Communication Specialist 1st Class Chad Runge PD-USGov-Military-Navy 2011 Chief of Naval Operations change of command ceremony |