On this week's episode, co-host Michelle Dover sits down with Michael Krepon, co-founder and a senior fellow at the Stimson Center. They discuss his latest book, “Winning and Losing the Nuclear Peace: the rise, demise, and revival of arms control" which offers a comprehensive look at arms control. On Early Warning, co-host Tom Collina sits down with Anatol Lieven, a senior research fellow on Russia and Europe at the Quincy Institute for Responsible Statecraft. He discusses the U.S. and NATO's response to Russian demands and diplomatic solutions to end the crisis in Ukraine.