U.S. Navy Aviation Structural Mechanic 2nd Class Edward Nowak, left, and Aviation Structural Mechanic 2nd Class Gregory McDuffie clean tools for an MH-60S Seahawk helicopter assigned to Helicopter Sea Combat Squadron (HSC) 9 aboard the aircraft carrier USS George H.W. Bush (CVN 77) in the Persian Gulf July 1, 2014. The George H.W. Bush supported maritime security operations and theater security cooperation efforts in the U.S. 5th Fleet area of responsibility.