A U.S. Army Soldier from the Foxtrot Company, 1st Battalion, 210th Aviation Regiment, 128th Avn. Brigade trains at the Engagement Skills Trainer at Joint Base Langley-Eustis, Virginia, March 20, 2019. The EST can be calibrated to suit many different firearms, meaning if a unit at Fort Eustis has a weapon, EST will have a simulation for that weapon. (U.S. Air Force photo by Senior Airman Tristan Biese)