U.S. Marine Corps Lance Cpl. Walter Pereira, a scout sniper with Weapons Company, 1st Battalion, 4th Marine Regiment, 13th Marine Expeditionary Unit (MEU), rehearses standing, sitting and kneeling drills with an M40A5 rifle mounted on a tripod Nov. 1, 2013, in Djibouti. The 13th MEU deployed with the Boxer Amphibious Ready Group as a theater reserve and crisis response force throughout the U.S. 5th Fleet area of responsibility.