Army Pvt. Inem Uko, right, looks on while Army Sgt. Iwona Kosmaczewska places an American flag in front of a headstone during "Flags In" at Arlington National Cemetery in Arlington, Va., May 25, 2017. Uko and Kosmaczewska are combat medics assigned to the 3rd U.S. Infantry Regiment, known as "The Old Guard." DoD photo by Sebastian J. Sciotti Jr.