A Marine with 1st Battalion, 2nd Marine Regiment posts security during a military operations on urbanized terrain exercise at Marine Corps Base Camp Lejeune, N.C., Nov. 21, 2017. The Marines conducted MOUT training to maintain combat readiness. (U.S. Marine Corps photo by Lance Cpl. Ashley McLaughlin) - A Marine with 1st Battalion, 2nd Marine Regiment posts security during a military operations on urbanized terrain exercise at Marine Corps Base Camp Lejeune, N.C., Nov. 21, 2017. The Marines conducted MOUT training to maintain combat readiness. (U.S. Marine Corps photo by Lance Cpl. Ashley McLaughlin)