Alexander Lanoszka, Associate Professor in International Relations at the University of Waterloo, discusses Military Alliances in the Twenty-First Century including the purpose of alliances, NATO's response to the war in Ukraine, and how the Ukraine war is likely to shape military alliances in coming decades.   Alexander Lanoszka on Military Alliances in the Twenty First Century  More about Alexander's work: alexlanoszka.com Find Alexander on twitter: @alonszka More about the host: Jessica Genauer - I'm also on Twitter @jessicagenauer and Linkedin @Jessica Genauer