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/936400'></iframe> Download Embed Share Austin, Brown Participate in 9/11 Ceremony Defense.gov Sept. 11, 2024 | 01:03:13 Secretary of Defense Lloyd J. Austin III and Joint Chiefs of Staff Chairman Air Force Gen. CQ Brown, Jr., speak at a ceremony honoring the 184 lives lost in the 2001 terrorist attack on the Pentagon. The event is being held at the National 9/11 Pentagon Memorial.