Last week saw the most consequential European security negotiations in years, as diplomats from Russia, NATO, and the United States tried to find agreement on Moscow's sweeping demands -- demands undergirded by around 100,000 troops deployed to Ukraine's borders. So what comes next? Are we about to see new war in Ukraine? Kadri Liik, a senior fellow at the European Council on Foreign Relations, and Sam Greene, director of the Russia Institute at King's College London, join host Mike Eckel to discuss.