President Barack Obama, accompanied by Army Maj. Gen. Jeffrey S. Buchanan, commander of the U.S. Army Military District of Washington, bow their heads during the playing of “Taps” at the Tomb of the Unknown Soldier at Arlington National Cemetery in Arlington, Va., on Memorial Day, May 25, 2015. President Barack Obama, accompanied by Army Maj. Gen. Jeffrey S. Buchanan, commander of the U.S. Army Military District of Washington, bow their heads during the playing of “Taps” at the Tomb of the Unknown Soldier at Arlington National Cemetery in Arlington, Va., on Memorial Day, May 25, 2015. SHARE: Download: Full Size (1.13 MB) Tags: Photo Essays Credit: VIRIN: 791994-R-XQY01-139.jpg Photo Gallery