190719-N-CZ893-1566 PACIFIC OCEAN (July 19, 2019) The Arleigh Burke-class guided-missile destroyer USS Pinckney (DDG 91) fires its Mark 45 5-inch gun during a live-fire exercise. Pinckney is conducting routine operations in the Eastern Pacific Ocean. (U.S. Navy photo by Mass Communication Specialist 2nd Class Jason Isaacs/Released)