170405-N-AX638-449 PACIFIC OCEAN (April 5, 2017) Sailors secure the fuel probe during a replenishment-at-sea aboard the Arleigh Burke-class guided-missile destroyer USS Howard (DDG 83) while underway conducting a composite training unit exercise (COMPTUEX) with the Nimitz Carrier Strike Group in preparation for an upcoming deployment. COMPTUEX tests the mission readiness of the strike group’s assets through simulated real-world scenarios and their ability to perform as an integrated unit. (U.S. Navy photo by Mass Communication Specialist 2nd Class Tyler Preston/Released)