171009-N-FP878-610 ATLANTIC OCEAN (Oct. 9, 2017) The Arleigh Burke-class guided-missile destroyer USS Winston S. Churchill (DDG 81) fires its Mark 45 5-inch gun while conducting a live-fire exercise during exercise Joint Warrior 17-2. The U.K.-led, multinational exercise that develops interoperability and cooperation in all applicable warfare areas. (U.S. Navy photo by Mass Communication Specialist 1st Class Theron J. Godbold/Released)