170712-N-AJ467-008 MEDITERRANEAN SEA (July 12, 2017) Electrician's Mate 3rd Class Dustin Koser makes a move during a chess match aboard the aircraft carrier USS George H.W. Bush (CVN 77). The ship and its carrier strike group are conducting naval operations in the U.S. 6th Fleet area of operations in support of U.S. national security interests in Europe and Africa. (U.S. Navy photo by Mass Communication Specialist Seaman Darien Weigel/Released)