U.S. Marines with the 2nd Battalion, 3rd Marine Regiment, attached to the 4th Marine Regiment, line up in assault amphibious vehicles at Dogu Beach in Pohang, South Korea, April 1, 2014, during Ssang Yong 14 as part of Marine Expeditionary Force Exercise (MEFEX) 2014. MEFEX 2014 was a U.S. Marine Corps Forces Pacific-sponsored series of exercises between the U.S. Navy and Marine Corps and South Korean forces. Among the exercises were the Korean Marine Exchange Program, Freedom Banner 14, Ssang Yong 14, Key Resolve 14 and the Combined Marine Component Command 14 command post exercise.