PHILIPPINE SEA (Dec. 15, 2020) Chief Sonar Technician (Surface) Mark Laurence, center, from Oklahoma City, Okla., directs Sonar Technician (Surface) 3rd Class Jordan Lang, right, from Palm Desert, Calif., to search on a line of bearing on active sonar in the sonar control station aboard the Arleigh Burke-class guided-missile destroyer USS John S. McCain (DDG 56) during an anti-submarine warfare training evolution. McCain is assigned to 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 Markus Castaneda)