Maj. Gen. Thad Bibb, 18th Air Force commander, listens to a briefing about the capabilities of the control tower during a base tour given to the incoming 18th Air Force leadership, Jan. 28, 2021, on Scott Air Force Base, Ill. As Air Mobility Command’s sole numbered air force, 18th Air Force ensures the readiness and sustainment of approximately 36,000 active duty, Air Force Reserve and civilian Airmen at 12 wings and one stand-alone group. (U.S. Air Force photo by Airman 1st Class Isaac Olivera)