U.S. Army Pvt. Andrew Carlisle, Foxtrot Company, 1st Battalion, 210th Aviation Regiment, 128th Avn. Brigade student, trains at the Engagement Skills Trainer at Joint Base Langley-Eustis, Virginia, March 20, 2019. The EST is designed to act like a real firearm and provide detailed feedback to the individual firing the weapon. (U.S. Air Force photo by Senior Airman Tristan Biese)