180504-N-RB564-051 NORFOLK (May 4, 2018) Chief of Naval Operations (CNO) Adm. John Richardson, left; Adm. Phil Davidson, commander of U.S. Fleet Forces (USFF) Command; Air Force Gen. Lori J. Robinson, commander of North American Aerospace Defense Command and United States Northern Command; and Adm. Chris Grady render salutes during the parading of the colors to start the USFF change of command ceremony aboard the aircraft carrier USS George H.W. Bush (CVN 77). Grady relieved Davidson as commander of USFF during the ceremony. (U.S. Navy photo by Mass Communication Specialist 1st Class Gary A. Prill/Released)