170425-N-MG079-066 ARABIAN GULF (April 25, 2017) Sailors assigned to the guided-missile cruiser USS Philippine Sea (CG 58) observe the firing of the ship's Mark 45 5-inch gun. Philippine Sea is part of the George H.W. Bush Carrier Strike Group which is deployed in support of maritime security operations and theater security cooperation efforts in the U.S. 5th Fleet area of operation. (U.S. Navy photo by Mass Communication Specialist 2nd Class Patrick Ian Crimmins/Released)