TOMB'S GUARD A member of the U.S. Army Honor Guard, 3rd United States Infantry Regiment marches past the wreaths placed at the Tomb of the Unknown Soldier at Arlington National Cemetery, in Arlington, Va., Dec. 14, 2013. Thousands of volunteers helped place more than 143,000 wreaths at the graves of fallen service members as part of the annual Wreaths Across America event. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 248891-G-ACZ68-112.jpg Photo Gallery