160222-N-OF476-101 PACIFIC OCEAN (Feb. 22, 2016) Marines assigned to the 13th Marine Expeditionary Unit (13th MEU), disembark a helicopter on the flight deck of amphibious assault ship USS Boxer (LHD4) while an MV-22 Osprey prepares to land. 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 Seaman Eric C. Burgett/Released)