A crater left by an explosive detonated by Marines with Bridge Company, 8th Engineer Support Battalion, 2nd Marine Logistics Group fills with water at a range aboard Camp Lejeune, N.C., Jan. 18, 2013. The explosive ripped a hole through a line of barbed wire during the unit's urban breaching and demolition training, which also prepared the Marines to use explosives to blow down doors and create holes in walls for urban assault teams.