180209-N-PE636-068 ATLANTIC OCEAN (Feb. 9, 2018) Aviation Boatswain's Mate (Equipment) 3rd Class Jessica Johnson operates a sound-powered telephone during flight operations on the flight deck aboard USS Harry S. Truman (CVN 75). Truman is underway conducting composite training unit exercise (COMPTUEX), which evaluates the strike group's ability as a whole to carry out sustained combat operations from the sea, ultimately certifying the Harry S. Truman Carrier Strike Group for deployment. (U.S. Navy photo by Mass Communication Specialist 2nd Class Anthony Flynn/Released)