Maj. Gen. Michael J. Lutton, 20th Air Force commander, is greeted by Col. Nathan B. Mitchell, 341st Maintenance Group commander, as he arrives at the maintenance hangar for a tour of the transporter-erector trainer May 10, 2021, at Malmstrom Air Force Base, Mont. Lutton also visited a missile alert facility and visit explosive ordnance disposal before departing. (U.S. Air Force photo by Airman Elijah Van Zandt)