As the war in Ukraine continues into its tenth month, it appears to have entered its most dangerous phase yet. During the past week, Russia’s attacks on Ukrainian civilians have intensified, in apparent retaliation for last weekend’s destruction of the Kerch Strait Bridge. Meanwhile, Vladimir Putin’s threats to use nuclear weapons following the annexation of four Ukrainian regions in the east and south have raised alarms across the world, even causing U.S. President Joe Biden to make warnings about the risks of “nuclear Armageddon.” Finally, the Ukrainian counteroffensive continues to make significant progress in reclaiming occupied territory, though it remains unclear to what extent Russia’s partial military mobilization may be able to turn back the tide. Ambassadors Bill Taylor and John Tefft join Andrea Kendall-Taylor to discuss the most recent developments in this increasingly dangerous phase of the war, and how Putin might maneuver going forward. Bill Taylor is the Vice President for Russia and Eurasia at the United States Institute of Peace. He served as U.S. Ambassador to Ukraine from 2006 to 2009. John Tefft is a retired U.S. diplomat with more than 45 years of experience in the foreign service. He has previously served as U.S. Ambassador to Russia, Ukraine, Georgia, and Lithuania.