Soldiers from the 3d U.S. Infantry Regiment (The Old Guard) place U.S. flags at headstones as part of Flags-In at Arlington National Cemetery, Arlington, Virginia, May 23, 2019. For more than 55 years, soldiers from the Old Guard have honored our nation’s fallen heroes by placing U.S. flags at gravesites for service members buried at both Arlington National Cemetery and the U.S. Soldiers’ and Airmen’s Home National Cemetery just prior to the Memorial Day weekend. Within four hours, over 1,000 soldiers place 245,000 flags in front of every headstone and Columbarium and niche wall column. (U.S. Army photo by Elizabeth Fraser / Arlington National Cemetery)