This week, Russia began a full-scale invasion of Ukraine. Russian airstrikes are now hitting Ukrainian military installations and Russian tanks are now rolling into Ukrainian cities. 

This invasion is an inflection point in Russian-Western relations, the largest since the end of the cold war. To help us understand the full historical and political context behind it, we invited the foreign-policy scholar Vance Serchuk to join our podcast. In conversation with Mosaic editor Jonathan Silver, he explains the history behind Russia's relations with its East European neighbors, what is motivating Russia's aggression now, and what options the United States and its allies, including Israel, have for aiding Ukraine.

Musical selections in this podcast are drawn from the Quintet for Clarinet and Strings, op. 31a, composed by Paul Ben-Haim and performed by the ARC Ensemble.