Armed with an M136 AT4 Anti-Tank weapon and Colt 5.56mm M16A2 Assault Rifles, US Marine Corps (USMC) troops from Charlie Company, 1ST Battalion, 5th Marines, 1ST Marine Division out of Camp Pendleton, California advance along a wire fence and down a road to protected positions, from which they can engage the enemy during firefights in support of Operation IRAQI FREEDOM