U.S. Air Force Lt. Gen. Marc Sasseville, commander of 1st Air Force and Continental U.S. North American Aerospace Defense Command Region, speaks during a virtual change of command ceremony July 29, 2020, at Tyndall Air Force Base, Florida. Sasseville focused the efforts of more than 2,000 members conducting homeland defense, defense support of civil authorities and theater security cooperation missions. (U.S. Air Force photo/Tech. Sgt. Clayton Lenhardt)