U.S. Army Col. Donovan Green, Supreme Allied Powers Europe Healthcare Facilities commander, adjusts his hands position while Nicole Poindexter, with Armed Forces North Battalion, U.S. Army NATO Brigade. explains him the on-screen feedback of the Engagement Skills Trainer (EST) in Chièvres, Belgium, Jan. 7, 2015. The EST, a virtual trainer running multiple scenarios, allows Soldiers to practice their shooting skills without using any ammunition, therefore saving money. (U.S. Army photo by Visual Information Specialist Pierre-Etienne Courtejoie/Released)