Army Spc. Samuel Murren, center, Pfc. Matthew Rizzoni, right, and Pvt. Sebastian Craig place American flags in front of headstones during "Flags In" at Arlington National Cemetery in Arlington, Va., May 24, 2018. Murren, Rizzoni and Craig are infantrymen assigned to Company A, 4th Battalion, 3rd U.S. Infantry Regiment, known as "The Old Guard.” DoD photo by Sebastian J. Sciotti Jr.