Player Embed Code: <iframe width='500' height='300' scrolling='no' frameborder='0' style='border: none; overflow: hidden; width: 500px; height: 300px;' allowtransparency='true' src='https://www.dvidshub.net/video/embed/683048'></iframe> Download Embed Share A Sacred Duty Defense.gov May 24, 2019 | 1:00 It’s a small plot of land that’s never left unguarded. The sentinels who guard the Tomb of the Unknown Soldier are a small and exclusive group. They stand their post 24 hours a day, 365 days a year regardless of the weather. Hear the Sentinel’s Creed and you’ll know why.Edited by Air Force Staff Sgt. Jared Bunn, DOD