Army Maj. Anthony Freiler, center, receives a rucksack full of American flags from Army Sgt. Ryan Crittenden before moving out to place the flags in front of a headstone during "Flags In" at Arlington National Cemetery in Arlington, Va., May 25, 2017. Freiler is a doctor and Crittenden motor vehicle repairmen assigned to the 3rd U.S. Infantry Regiment, known as "The Old Guard." DoD photo by Sebastian J. Sciotti Jr.