191207-N-HI500-1235 PACIFIC OCEAN (Dec. 7, 2019) The Arleigh Burke-class guided-missile destroyer USS Kidd (DDG 100) fires its Mark 45 5-inch gun during a live-fire exercise, Dec. 7, 2019. Kidd is underway conducting routine training in the eastern Pacific Ocean. (U.S. Navy photo by Mass Communication Specialist 3rd Class Brandie Nuzzi/Released)