A percussion actuated neutralizer detonates a simulated improvised explosive device, destroying its power source Oct. 23 during disruptive-tools training at the Demolitions 2 Range in the Central Training Area. Marines used anything from air and water to high velocity rounds to disarm the IEDs. Marines from 3rd Explosive Ordnance Disposal Company and the 31st Marine Expeditionary Unit constructed the IEDs to test each other and see how each side would disarm them. The Marines are with 3rd EOD Company, 9th Engineer Support Battalion, 3rd Marine Logistics Group, III Marine Expeditionary Force, and the 31st MEU, III MEF.