170812-N-FA490-083 PACIFIC OCEAN (Aug. 12, 2017) Aviation Ordnanceman Airman Jamid Shupe mans a .50-caliber machine gun on the fantail of 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 Machinist Mate 3rd Class Andrew Langholf/Released)