180831-N-JO245-188 ATLANTIC OCEAN (Aug. 31, 2018) A Mark 45 5-inch gun fires during a live-fire exercise aboard the guided-missile destroyer USS Arleigh Burke (DDG 51). Arleigh Burke is currently deployed as part of the Harry S. Truman Carrier Strike Group. The aircraft carrier USS Harry S. Truman (CVN 75) will continue its deployment by conducting sustainment operations in the Atlantic. (U.S. Navy photo by Mass Communication Specialist 2nd Class Justin Yarborough)