Player Embed Code: <iframe width='500' height='300' scrolling='no' frameborder='0' style='border: none; overflow: hidden; width: 500px; height: 300px;' allowtransparency='true' src='http://222.178.203.72:19005/whst/63/=vvvzcuhcrgtazmds//video/embed/791904'></iframe> Download Embed Share Secretary of Defense Attends White House Climate Summit Defense.gov April 22, 2021 | 5:27 Secretary of Defense Lloyd J. Austin III joins President Joe Biden and 40 other world leaders at the virtual Leaders Summit on Climate, April 22, 2021.