U.S. Marines with Company I, Battalion Landing Team 3rd Battalion, 5th Marines, 31st Marine Expeditionary Unit, conduct training with Amphibious Assault Vehicles as part of Amphibious Integration Training (AIT) at sea, Sept 4, 2014. The Marines are conducting AIT aboard the USS Peleliu. The 31st MEU is the last Marine Corps unit to board the USS Peleliu before it is decommissioned. (U.S. Marine Corps photo by GySgt Ismael Pena/Released)