U.S. Navy Naval Aircrewman 2nd Class Nicholas Kontodiakos, left, and Lt. j.g. Derek Fennig perform a preflight check on an MH-60S Seahawk helicopter assigned to Helicopter Sea Combat Squadron 7 on the flight deck of the aircraft carrier USS Harry S. Truman in the Gulf of Oman, Nov. 3, 2013. The Harry S. Truman, the flagship for the Harry S. Truman Carrier Strike Group, was deployed to the U.S. 5th Fleet area of responsibility conducting maritime security operations and theater security cooperation efforts in support of Operation Enduring Freedom.