U.S. Marines with Combat Logistics Battalion 11, 11th Marine Expeditionary Unit (MEU), test water filtered through the Lightweight Water Purification System (LWPS) in D'Arta Plage, Djibouti, during the initial stages of sustainment training, Oct. 26. Marines from the 11th MEU are deployed with the Makin Island Amphibious Ready Group as a flexible, adaptable and persistent force in the U.S. 5th Fleet area of responsibility. U.S. Marine Corps photo by Cpl. Jonathan R. Waldman/Released)