180613-N-UX013-0093 ATLANTIC OCEAN (June 13, 2018) Ensign Peter Cheneler, left, and Lt. Christine Jackson track casualties on the bridge window of the guided-missile destroyer USS Jason Dunham (DDG 109) during a simulated strait transit. Jason Dunham is conducting naval operations in the U.S. 6th Fleet area of operations in support of U.S. national security interests in Europe. (U.S. Navy photo by Mass Communication Specialist 3rd Class Jonathan Clay/Released)