170821-N-XC372-677 PACIFIC OCEAN (Aug. 21, 2017) A U.S. Air Force E-3 Sentry airborne warning and control system assigned to Air Combat Command at Tinker Air Force Base flies over the aircraft carrier USS Theodore Roosevelt (CVN 71). Theodore Roosevelt is underway conducting a composite training unit exercise (COMPTUEX) with its carrier strike group in preparation for an upcoming deployment. COMPTUEX tests a carrier strike group's mission-readiness and ability to perform as an integrated unit through simulated real-world scenarios. (U.S. Navy photo by Mass Communication Specialist 3rd Class Anthony J. Rivera/Released)