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/778042'></iframe> Download Embed Share Operation Warp Speed Leaders Hold Briefing on COVID-19 Vaccine Defense.gov Dec. 21, 2020 | 51:17 Army Gen. Gustave F. Perna, chief operating officer of Operation Warp Speed, and Secretary of Health and Human Services Alex M. Azar II brief the media on the progress of Operation Warp Speed, Dec. 21, 2020.