SOUTH CHINA SEA (Aug. 31, 2021) Gas Turbine Systems Technician (Mechanical) Fireman Erik Brekke, from Gilbert, Ariz., performs preventative maintenance on engine systems aboard the Arleigh Burke-class guided-missile destroyer USS O�Kane (DDG 77). O�Kane is deployed supporting Commander, Task Force (CTF) 71/Destroyer Squadron (DESRON) 15, the Navy�s largest forward-deployed DESRON and U.S. 7th Fleet�s principal surface force. (U.S. Navy photo by Mass Communication Specialist Seaman Elisha Smith)