FALLUJAH, Iraq (July 8, 2008) - Cpl. Luke J. Weber (top left), a sentry with Guard Force, Headquarters and Service Company, 3rd Battalion, 6th Marines, and Lance Cpl. Michael Smith (bottom/top right), originally a mortarman with the battalion, guard the entry points of Camp Baharia in Fallujah, July 8. While terrorist activity has reached a lull, the sentries' job is still arguably one of the most important, as the battalion relies on them to keep the base secure. (Official U.S. Marine Corps photo illustration by Cpl. Chris Lyttle) (RELEASED) - FALLUJAH, Iraq (July 8, 2008) - Cpl. Luke J. Weber (top left), a sentry with Guard Force, Headquarters and Service Company, 3rd Battalion, 6th Marines, and Lance Cpl. Michael Smith (bottom/top right), originally a mortarman with the battalion, guard the entry points of Camp Baharia in Fallujah, July 8. While terrorist activity has reached a lull, the sentries' job is still arguably one of the most important, as the battalion relies on them to keep the base secure. (Official U.S. Marine Corps photo illustration by Cpl. Chris Lyttle) (RELEASED)