U.S. Marines with Charlie Company, Battalion Landing Team, 1st Battalion, 4th Marine Regiment, assigned to the 13th Marine Expeditionary Unit, perform a tactical extraction with MV-22B Osprey tiltrotor aircraft assigned to Marine Medium Tiltrotor Squadron (VMM) 166 April 1, 2014, during Ssang Yong 14 as part of Marine Expeditionary Force Exercise (MEFEX) 2014 at Suesongri Range in Pohang, South Korea. 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.