U.S. Navy sailors with Assault Craft Unit 5 (ACU-5), Beachmaster Unit One, secure an M1A1 Main Battle Tank with the 11th Marine Expeditionary Unit to a landing craft air cushion for retrograde during sustainment training in D'Arta Plage, Djibouti, Nov. 15. The 11th MEU is deployed as a theater reserve and crisis response force throughout U.S. Central Command and 5th Fleet area of responsibility. (U.S. Marine Corps photo by Cpl. Jonathan R. Waldman/Released)