U.S. Marines assigned to Battalion Landing Team, 1st Battalion, 4th Marine Regiment, 13th Marine Expeditionary Unit (MEU) conduct visit, board, search and seizure training in the Gulf of Aden Feb. 1, 2014. The 13th MEU was assigned to the Boxer Amphibious Readiness Group and was underway in the U.S. 5th Fleet area of responsibility supporting maritime security operations and theater security cooperation efforts.