U.S. Marines with Charlie Company, 3D Law Enforcement Battalion, provide Port security during Ssang Yong 14 from High Mobility Multipurpose Wheeled Vehicles at Pier 9, Pohang, South Korea, April 4, 2014. Exercise Ssang Yong is conducted annually in the Republic of Korea (ROK) to enhance interoperability between U.S. and ROK forces by performing a full spectrum of amphibious operations while showcasing sea-based power projection in the Pacific. (U.S. Marine Corps Photo by Cpl. Sara A. Medina, III MEF Combat Camera/Released)