160220-N-MJ491-029 PACIFIC OCEAN (Feb. 20, 2016) Chief Aviation Boatswain’s Mate (Handling) Oscar Rulas and Aviation Boatswain’s Mate (Handling) 2nd Class Gregory Scott direct a CH-53 Sea Stallion as it is towed by an A/S32A-49 tow tractor on the flight deck on board amphibious assault ship USS Boxer (LHD 4). More than 4,500 Sailors and Marines from Boxer Amphibious Ready Group and the 13th Marine Expeditionary Unit (13th MEU) are conducting sustainment training off the coast of Hawaii in preparation for entering the U.S. 5th and 7th Fleet areas of operations. (U.S. Navy photo by Mass Communication Specialist 1st Class Matthew N. Jackson/Released)