Army Pfc. Dorold Nguyen, a Patriot Fire Control Enhanced Operator/Maintainer with Headquarters and Headquarters Battery, 35th Air Defense Artillery Brigade, inspects the Reconfigurable Table Top Trainer’s keyboard at the RT3 lab at Osan Air Base, South Korea, Aug. 24, 2017. Dorold facilitates training simulations to the lower echelons of his unit to sustain their ability to fight tonight. Army photo by Staff Sgt. Monik Phan