PHILIPPINE SEA (March 10, 2022) Gas Turbine Systems Technician (Electric) Fireman Osvaldo Alvarez, from Houston, conducts daily sanitization to combat COVID-19 aboard the Arleigh Burke-class guided-missile destroyer USS Ralph Johnson (DDG 114). Ralph Johnson 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 2nd Class Samantha Oblander)