170506-N-VN584-001 PACIFIC OCEAN (May 6, 2017) Ship’s Serviceman 3rd Class Mark Derequito tallies final numbers for a Physical Readiness Test in the hangar bay of the aircraft carrier USS Theodore Roosevelt. The ship is participating in a group sail training unit exercise to enhance mission-readiness and warfighting capabilities between the ships, air wing and staffs through simulated real-world scenarios. (U.S. Navy photo by Mass Communication Specialist Seaman Alex Corona/Released)