170320-N-FO714-058 PACIFIC OCEAN (March 20, 2017) The Arleigh Burke-class guided-missile destroyer USS Kidd (DDG 100) fires its Mark 45 5-inch gun during a live fire exercise 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 3rd Class Deanna C. Gonzales/Released)