Army Staff Sgt. Joseph Presher performs maintenance checks on a vehicle during a master driver training course at Bagram Airfield, Afghanistan on Nov. 8, 2017. Presher is a squad leader assigned to the 82nd Airborne Division’s 2nd Battalion, 501st Parachute Infantry Regiment. A group of master drivers took a two-week course to be certified in training future drivers for three vehicle types. Army photo by Spc. Elizabeth White