170421-N-KR702-005 PACIFIC OCEAN (April 21, 2017) Sailors move boxes in the hangar bay aboard the aircraft carrier USS Nimitz (CVN 68) during an underway replenishment with the dry cargo and ammuniton ship USNS Carl Brashear (T-AKE 7). Nimitz is underway conducting a composite training unit exercise (COMPTUEX) with the Nimitz 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 2nd Class Holly L. Herline/Released)