Analyzes and reviews the connection between the conflicts in the former Yugoslavia and the growth of the trans-border crime in the region, and also looks at the related issue of corruption. The paper highlights the decisive impact the Yugoslav wars had on the development of the regional criminal networks, which were often set up and maintained not only with the knowledge, but even with active participation of the highest state officials. The research also represents a contribution to the study of conflicts in the Western Balkans. The majority of existing interpretations of causes, course and consequences of the Yugoslav wars try to provide the answers through ethno-political explanations. They unjustly ignore the importance that interweaving of interests of political elites, the organized crime groups, which appeared in this period, and the "mediating class" of corrupt state officials had in this process.