Tomb Guard A soldier assigned to the 3rd U.S. Infantry Regiment, known as the "Old Guard," walks the mat at the Tomb of the Unknown Soldier on Memorial Day at Arlington National Cemetery, Va., May 30, 2022. SHARE: Download: Full Size (4.02 MB) Tags: Memorial Day, Army Credit: Elizabeth Fraser, Army VIRIN: 220530-A-IW468-548.JPG Photo Gallery