A mock artillery shell, simulating an improvised explosive device, lies on the side of a path used by Transportation Support Company, Combat Logistics Battalion 6, 2nd Marine Logistics Group during a field exercise aboard Marine Corps Base Camp Lejeune, N.C., Aug. 20, 2014. Marines, playing the role of enemy combatants, set up simulated IEDs and ambushes to aid in the realism of the training.