170720-N-AJ467-126 MEDITERRANEAN SEA (July 20, 2017) Aviation Machinist's Mate 3rd Class Shawn Gratland, left, and Aviation Machinist's Mate 2nd Class Austin Brown reel in an aerial refueling coupling 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)