U.S. Navy Aviation Structural Mechanic Airman Fernando Castillo washes an MH-60R Seahawk helicopter assigned to Helicopter Maritime Strike Squadron (HSM) 70 aboard the aircraft carrier USS George H.W. Bush (CVN 77) in the Persian Gulf June 26, 2014. The George H.W. Bush supported maritime security operations and theater security cooperation efforts in the U.S. 5th Fleet area of responsibility.