What lead directly to separatist movements in Eastern Europe in the 1990s?

The separatist movements in Eastern Europe during the 1990s were primarily driven by the dissolution of the Soviet Union, which led to the emergence of national identities and aspirations for self-determination among various ethnic groups. Economic instability, political disenfranchisement, and the desire for greater autonomy fueled these movements, particularly in regions like the Balkans, the Caucasus, and the Baltic states. Additionally, the weakening of central authority in Moscow allowed local leaders to assert nationalist agendas, further exacerbating tensions and conflicts.