U.S. Air Force Gen. Mark Kelly, commander of Air Combat Command, speaks to members of the 601st Air Operation Center during a visit to Tyndall Air Force Base, Florida, Sept. 29, 2020. Kelly spent a portion of his morning visiting with members of 1st Air Force and 601st AOC and learning about their vital air defense mission supporting the North American Aerospace Defense Command and U.S. Northern Command. (U.S. Air Force photo by Maj. Andrew Scott)