PHILIPPINE SEA (March 16, 2021) Capt. Chase Sargeant, commodore of Destroyer Squadron (DESRON) 15, and Cmdr. Tin Tran, commanding officer of the Arleigh Burke-class guided-missile destroyer USS John S. McCain (DDG 56), look for an incoming unmanned aerial vehicle during a counter unmanned aerial strike training exercise. John S. McCain 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 1st Class Jeremy Graham)