As calls grow for an end to the war in Ukraine, a number of recent developments indicate the war could instead be expanding beyond Ukraine’s borders. Russia has signed an agreement with Belarus to begin deploying tactical nuclear weapons there, and a group of pro-Ukrainian fighters from Russia has attacked sites in the Russian region of Belgorod using what appears to be U.S.-made armored vehicles and Humvees. This cross-border raid was carried out in part by the Russian Volunteer Corps, a group that includes self-avowed neo-Nazis. For more, we speak to Gregory Afinogenov, a professor of Russian history at Georgetown University, and Denis Pilash, a Ukrainian political scientist, historian and member of the Ukrainian democratic socialist organization Sotsialnyi Rukh.