Corporal Michael A. Buckley, a field artillery cannoneer with India Battery, Battalion Landing Team 3rd Battalion, 6th Marine Regiment, 24th Marine Expeditionary Unit, uses an M138A2 telescope to establish an azimuth of fire for an M777A2 lightweight towed howitzer during dry-fire artillery training in Djibouti, March 8, 2015. A contingent of the MEU was ashore in Djibouti conducting sustainment training to maintain proficiency. The 24th MEU is embarked on the ships of the Iwo Jima Amphibious Ready Group and deployed to maintain regional security in the U.S. 5th Fleet area of operations. (U.S. Marine Corps photo by Lance Cpl. Austin A. Lewis/Released)