Marines with Combat Logistics Battalion 15, 15th Marine Expeditionary Unit, practice an improvised explosive device lane scenario, in support of 15th MEU sustainment training at Port Arta, Djibouti, Dec. 12, 2012. The 15th MEU is deployed as part of the Peleliu Amphibious Ready Group as a U.S. Central Command theater reserve force, providing support for maritime security operations and theater security cooperation efforts in the U.S. 5th Fleet area of responsibility.