"Flags In" at Arlington

Army Pvt. Aaron Johnson, 3rd U.S. Infantry Regiment (The Old Guard), places a small American Flag in front of a grave at Arlington National Cemetery on May 24, 2012.

During an approximately three-hour period, the soldiers place flags in front of more than 260,000 gravestones and about 7,300 niches at the cemetery's columbarium.

Photo by Army Staff Sgt. Matthew Coffee