RIFLE DRILL Members of the U.S. Army Drill Team, part of the 3d U.S. Infantry Regiment known as "The Old Guard," perform during an exhibition drill at the Lincoln Memorial in Washington, D.C., April 13, 2013. The soldiers spend hours a week perfecting each movement and routine. SHARE: Download: Full Size (26.51695 MB) Tags: Week In Photos, Week In Photos Credit: VIRIN: 613622-C-LBQ59-356.jpg Photo Gallery