190304-N-YF546-1399 PACIFIC OCEAN (March 4, 2019) Master-at-Arms Seaman William Walker, from Kailua, Hawaii, runs on a treadmill in the hangar bay of the aircraft carrier USS Theodore Roosevelt (CVN 71). Theodore Roosevelt is conducting routine operations in the Eastern Pacific. (U.S. Navy photo by Mass Communication Specialist Seaman Jasmine Whaley/Released)