171016-N-GP724-1114 PACIFIC OCEAN (Oct. 16, 2017) Lt. Dani Leary climbs through a recompression chamber during a medical drill aboard the aircraft carrier USS Theodore Roosevelt (CVN 71). Theodore Roosevelt is underway for a scheduled deployment to the U.S. 7th and 5th Fleet areas of responsibility in support of maritime security operations and theater security cooperation efforts. (U.S. Navy photo by Mass Communication Specialist 3rd Class Alex Perlman/Released)