U.S. Air Force Maj. John Heatherly, 601st Air Operations Center Combat Plans Division, briefs U.S. Air Force Gen. Mark Kelly, commander of Air Combat Command, and U.S. Air Force Chief Master Sgt. David Wade, the command chief of Air Combat Command, on how the AOC conducts missions throughout the continental United States during a visit to Tyndall Air Force Base, Florida, Sept. 29, 2020. Kelly and Wade spent a portion of their 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)