HONORING OUR FALLEN President Barack Obama, left, and Army Maj. Gen. Karl Horst, commander of the U.S. Army Military District of Washington and Joint Force Headquarters National Capital Region, render honors on Memorial Day during the playing of taps at the Tomb of the Unknowns in Arlington National Cemetery, Va., May 30, 2011. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 200922-F-PYE10-977.jpg Photo Gallery