The breakdown in communication between the US and Ukraine two weeks ago, for all the world to see, raises myriad questions, from the near-term state of the peace process in the Ukraine War, to the further-reaching framework of great power dynamics. As our guest this week details, the roles played in an emergent world order by the US, Europe, Russia and China are in flux, and we face potentially the most momentous geopolitical reorientation since the collapse of the Soviet Union. Tsveta Petrova is a lecturer in political science at Columbia University and an analyst and consultant for GeoQuant, a political risk consultancy and one of our research partners.