Djibouti (July 22, 2015) U.S. Marines with Battalion Landing Team 3rd Battalion, 1st Marine Regiment, 15th Marine Expeditionary Unit fire AT-4 rockes during a rocket training exercise. The Marines of BLT 3/1 conduct a series of attack and maneuver drills in Djibouti consisting of frag, machine gun, squad and night drills. The 15th MEU is embarked on the Essex Amphibious Ready Group and deployed to maintain regional security in the U.S. 5th Fleet area of operations. (U.S. Marine Corps photo by Sgt. Jamean Berry/Not Released)