190612-N-GW654-1018 SAN DIEGO (June 12, 2019) Personnel Specialist 2nd Class Nadia Martinez, from Dallas, applies a non-rebreather mask to Information Systems Technician 3rd Class Claire Wright, from Mesa, Ariz., during a medical training exercise aboard the aircraft carrier USS Theodore Roosevelt (CVN 71). Theodore Roosevelt is homeported in San Diego. (U.S. Navy photo by Mass Communication Specialist Seaman Olympia O. McCoy/Released)