PHILIPPINE SEA (Aug. 14, 2020) Sailors assigned to the Arleigh Burke-class guided-missile destroyer USS Mustin (DDG 89), enter a space during a damage control firefighting drill. Mustin is underway conducting operations in support of security and stability in the Indo-Pacific 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 3rd Class Cody Beam)