U.S. Air Force Airman First Class Stephon Mack, ceremonial guardsman U.S. Air Force Honor Guard, places an American flag in Arlington National Cemetery, Arlington, Va., during “Flags-In”, May 27, 2021. Each year prior to Memorial Day, more than 280,000 flags are placed at each headstone in the cemetery honoring the nation's fallen heroes. (U.S. Air Force photo by Tech. Sgt. Logan Carlson)