180203-N-NB178-207 ATLANTIC OCEAN (Feb. 3, 2018) Yeoman 2nd Class Kobi Gaskin stands aft lookout watch on the flight deck of the guided-missile destroyer USS Forrest Sherman (DDG 98). Forrest Sherman is underway as part of the Harry S. Truman Carrier Strike Group (HSTCSG) 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 HSTCSG for deployment. (U.S. Navy photo by Mass Communication Specialist 2nd Class Tyrell K. Morris/Released)