U.S. Air Force Maj. Gen. Michael G. Koscheski, Fifteenth Air Force commander, and Chief Master Sgt. Sonia T. Lee, Fifteenth Air Force command chief, speak with Sikorsky UH-60 Blackhawk crew chief training instructors with the 128th Aviation Brigade, helicopter maintenance school, at Joint Base Langley-Eustis, Virginia, Dec. 1, 2021. Koscheski and Lee visited the 128th Aviation Brigade to meet Airmen currently in Air Force Advanced Individual Training. Base visits like these allow senior leaders to interact with service members to see first-hand some of the successes and challenges faced at different installations across the Air Force. Joint Base Langley-Eustis is the only joint base in Air Combat Command. (U.S. Air Force photo by Staff Sgt. Gabriel Macdonald)