A U.S. Sailor signals that chocks and chains have been placed on the wheels of a Navy MH-60S Seahawk helicopter assigned to Helicopter Sea Combat Squadron (HSC) 9 on the flight deck of the guided missile destroyer USS Arleigh Burke (DDG 51) July 30, 2014, in the Arabian Gulf. The Arleigh Burke was supporting security efforts in the U.S. 5th Fleet area of responsibility. (U.S. Navy photo by Mass Communication Specialist 2nd Class Carlos M. Vazquez II/Released)