1 rich Libsyn https://www.libsyn.com 90 600 This week on our Polar Politics occasional series, Josh Tallis sits down with Walter Berbrick, one of the lead authors of the U.S. Navy’s new Arctic Strategy titled “A Blue Arctic.” Walter is an associate professor at the Naval War College. Go to www.cna.org/CNAtalks&amp;nbsp;to learn more about the participants and listen to more CNA Talks episodes. CNA Talks: A National Security Podcast https://www.cna.org/news/Podcast <iframe title="Libsyn Player" style="border: none" src="//html5-player.libsyn.com/embed/episode/id/18079436/height/90/theme/custom/thumbnail/yes/direction/forward/render-playlist/no/custom-color/88AA3C/" height="90" width="600" scrolling="no" allowfullscreen webkitallowfullscreen mozallowfullscreen oallowfullscreen msallowfullscreen></iframe> https://assets.libsyn.com/secure/item/18079436