170805-N-MJ135-939 PACIFIC OCEAN (Aug. 5, 2017) Rear Adm. Steve Koehler, right, commander of Carrier Strike Group (CSG) 9, and Cmdr. Marc Deltete, commanding officer of the guided-missile destroyer USS Higgins (DDG 76), inspect an engine room during a routine tour of the vessel. Higgins is part of the Theodore Roosevelt Carrier Strike Group, which is underway conducting a composite training unit exercise (COMPTUEX) 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 3rd Class Spencer Roberts/Released)