Marine Corps Sgt. Mitchell D. Taylor receives assistance with removing his mask after undergoing a decontamination process during a simulated chemical ordnance hazard removal exercise at the Marine Corps Air Ground Combat Center in Twentynine Palms, Calif., Sept. 20, 2015. Taylor is an explosive ordnance disposal technician with the 3rd Explosive Ordnance Disposal Unit, 9th Engineer Support Battalion. Marine Corps photo by Lance Cpl. Levi Schultz