An MH-60S Seahawk helicopter approaches the Military Sealift Command fast combat support ship USNS Bridge (T-AOE 10) during a vertical replenishment with the dock landing ship USS Comstock (LSD 45) in the Persian Gulf May 17, 2011. Comstock is supporting maritime security operations and theater security cooperation efforts in the U.S. 5th Fleet area of responsibility. The MH-60S is assigned to Helicopter Sea Combat Squadron (HSC) 23.