This issue features the fourth installment in a series of special sections on the memory of the Organization of Ukrainian Nationalists (OUN) and the OUN-Bandera-wing’s military arm, the Ukrainian Insurgent Army (Ukrainian abbreviation: UPA). Within this series, historians and social scientists detail findings from their research on interwar and war-time Ukrainian nationalism as well as its contemporary public and scholarly interpretations and representations—not least, against the background of the Russian–Ukrainian war (2014–ongoing) and its related propaganda campaigns. In this issue, we also launch a series of special sections in which scholars in the fields of comparative fascism, East European right-wing extremism, and Ukrainian ultra-nationalism debate different approaches to the OUN.