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/808751'></iframe> Download Embed Share Joint Chiefs Chairman Hosts Luncheon at a Sea-Air-Space Expo Defense.gov Aug. 2, 2021 | 30:22 Army Gen. Mark A. Milley, chairman of the Joint Chiefs of Staff, hosts a luncheon at the Sea-Air-Space Global Maritime Exposition, Washington.