200317-N-YQ181-1027 PHILIPPINE SEA (Mar. 17, 2020) Sailors aboard the Arleigh Burke-class guided-missile destroyer USS Mustin (DDG 89) fire a .50-caliber machine gun during a live-fire exercise. Mustin is underway conducting operations in support of security and stability in the Indo-Pacific while assigned to Destroyer Squadron 15, the Navy�s largest forward-deployed DESRON and the U.S. 7th Fleet�s largest principal force. (U.S. Navy photo by Mass Communication Specialist Seaman Askia Collins/Released)