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/677443'></iframe> Download Embed Share Northcom Commander Discusses Challenges in the Arctic Defense.gov May 6, 2019 | 01:08:29 Air Force Gen. Terrence J. O’Shaughnessy, U.S. Northern Command commander, is joined by several panelists representing the Navy and Marines in a discussion about the challenges and opportunities for the sea services in the Arctic region as other nations stake claims, extract resources and conduct patrols, at the Navy League’s Sea-Air-Space Exposition at National Harbor, Md., May 6, 2019.