U.S. Marine Corps AAV-P7/A1 Amphibious Assault Vehicles assigned to Battalion Landing Team 1st Battalion, 5th Marines, 31st Marine Expeditionary Unit, approach the shoreline as they conduct a combined amphibious assault at Dogu Beach, South Korea, as part of Ssang Yong 16, March 12, 2016. Ssang Yong is a biennial combined amphibious exercise conducted by U.S. forces with the Republic of Korea Navy and Marine Corps, Australian Army and Royal New Zealand Army Forces in order to strengthen interoperability and working relationships across a wide range of military operations. The Marines and Sailors of the 31st MEU are in Korea as part of their spring deployment to the Asia-Pacific region. (U.S. Marine Corps photo by Gunnery Sgt. Ismael Pena/Released)