A U.S. Marine with Alpha Company, Battalion Landing Team, 1st Battalion, 4th Marine Regiment, 13th Marine Expeditionary Unit (MEU) throws a training grenade during live-fire and movement grenade training exercise Feb. 18, 2014, at Arta Range, Djibouti. The 13th MEU deployed with the Boxer Amphibious Ready Group as a theater reserve and crisis response force throughout the U.S. 5th Fleet area of responsibility.