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/821542'></iframe> Download Embed Share President, SECDEF, CJCS Lay Wreath at Tomb of the Unknown Soldier Defense.gov Nov. 11, 2021 | 29:18 President Joe Biden, Secretary of Defense Lloyd J. Austin III, and Army Gen. Mark A. Milley, chairman of the Joint Chiefs of Staff, attend the Veterans Day observance at the Tomb of the Unknown Soldier in Arlington National Cemetery.