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/644638'></iframe> Download Embed Share Marine Corps Commandant Participates in National Defense Forum Panel Defense.gov Dec. 1, 2018 | 50:05 Marine Corps Commandant Gen. Robert Neller participates in a panel discussion on strategies and tools necessary to counter adversaries during the Reagan National Defense Forum at the Ronald Reagan Presidential Library in Simi Valley, Calif., Dec. 1, 2018.