https://www.upi.com/News_Photos/lp/e9e871c6e48cd8453ee14b06fc9c5f42/https://www.upi.com/News_Photos/view/upi/e9e871c6e48cd8453ee14b06fc9c5f42/Tomb-of-the-Unknown-Soldier/Tomb of the unknown soldier, arlington cemetery, old guard, memorial dayUPIUPIhttps://cdnph.upi.com/pv/upi/e9e871c6e48cd8453ee14b06fc9c5f42/OBAMA-MEMORIAL-DAY.jpg
Air Force Honor Guard march up to the the Tomb of the Unknown Soldier for a wreath laying ceremony on Memorial Day at Arlington National Cemetery in Arlington, Va., May 26, 2014. UPI/Molly Riley