170711-N-SO730-114 MEDITERRANEAN SEA (July 11, 2017) Lt. Cmdr. Krista Puttler, left, ship's surgeon aboard the aircraft carrier USS George H.W. Bush (CVN 77), and Hospital Corpsman 1st Class Christina Sizemore insert stitches after surgery. 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 3rd Class Joe Boggio/Released)