Assistant to the President for National Security Affairs Robert O'Brien participates in a Halifax chat at HISF 2019.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/38144472@N04">US Embassy Canada</a>
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/us_mission_canada/49112059217/">National Security Advisor Robert O'Brien Halifax Chatifax Chat - 3</a>