Maj. Gen. Andrea D. Tullos, 2nd Air Force commander, discusses the preliminary explosive ordnance disposal course at Sheppard Air Force Base, Texas, Nov. 18, 2019. Tullos and her team visited units across the base to understand operations at Sheppard, find solutions for complex issues and see what resources are needed to improve training. (U.S. Air Force photo by Airman 1st Class Madeleine E. Jinks)