200522-N-CL550-0119 PHILIPPINE SEA (May 22, 2020) Sonar Technician (Surface) 3rd Class Kenneth Montgomery, from Mesa, Ariz., stands watch as a sonar passive operator during an undersea warfare exercise in the sonar control room aboard the Arleigh Burke-class guided-missile destroyer USS John S. McCain (DDG 56). John S. McCain is underway conducting operations in the Indo-Pacific region while 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 Taylor DiMartino/Released)