170830-N-IA905-0130 PACIFIC OCEAN (Aug. 30, 2017) Cryptologic Technician (Technical) 3rd Class Christina Carpenter heaves line aboard the guided-missile destroyer USS Preble (DDG 88) as the ship prepares to moor. Preble is returning from a composite training unit exercise (COMPTUEX) with the Theodore Roosevelt 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 Seaman Morgan K. Nall/Released)