18. Ratko Mladić
Ratko Mladić led the Bosnian Serb forces during the bloody Yugoslav Wars of the 1990s. He became notorious as the architect of the Srebrenica massacre, where more than 8,000 Bosniak men and boys were systematically executed. This atrocity stands as Europe’s worst mass killing since World War II, shocking the world and leading to Mladić’s eventual conviction for genocide and crimes against humanity. His ruthless command left a legacy of grief and horror across the Balkans.
