U.S. Marine Corps Corporal Justin M. Fanning, Headquarters and Service Company, Headquarters Regiment, 2d Marine Logistics Group (2D MLG) teaches a monitor survey reconnaissance class on Camp Lejeune, N.C., Aug. 20, 2014. During the training, 2D MLG Marines operated the M256 Chemical Agent Detector Kit. (U.S. Marine Corps photo by Lance Cpl. Desire M. Mora/Released)