180804-N-ZA156-0003 PACIFIC OCEAN (Aug. 8, 2018) The guided-missile destroyer USS Sterett (DDG 104) fires its Mark 45 5-inch lightweight gun as the ship conducts a live-fire exercise. Sterett is underway in the U.S. 3rd Fleet area of operations. (U.S. Navy photo by Fire Controlman (Aegis) 2nd Class Scott Rogers/Released)