U.S. Air Force Maj. Gen. David Lyons, Fifteenth Air Force commander, performs tactical combat casualty care on a simulated patient alongside Maj. John Gregory, Fifteenth Air Force commander's executive, at Joint Base Langley-Eustis, Virginia, June 4, 2024. Lyons visited the 633d Medical Group where he volunteered to provide care on a simulated injured patient, gaining hands-on insight into how the JBLE MDG further enhances training. (U.S. Air Force photo by Airman 1st Class Adisen Smith)