SOUTH CHINA SEA (Jan. 17, 2022) Arleigh Burke-class guided-missile destroyer USS Ralph Johnson (DDG 114) conducts a live-fire exercise of the MK 160 Gun Fire Control System. Ralph Johnson is assigned to Task Force 71/Destroyer Squadron (DESRON) 15, the Navy’s largest forward-deployed DESRON and the U.S. 7th fleet’s principal surface force. (U.S. Navy photo by Mass Communication Specialist 2nd Class Samantha Oblander)