Dissertation is devoted to the complex analysis of the activities of intergovernmental and nongovernmental organizations (NGOs) in the field of overcoming of war crimes consequences in former Yugoslavia during 1991-2008, which previously was not a subject of the special research. The war crimes were caused by deep interethnic contradictions between Bosnian Muslims, Croats, Kosovo Albanians, Macedonians, Montenegrins and Serb, were supported by that time national leaders and had a mass character. Mass violations in the Western Balkans needed the interruption of the world community, which was represented by the international organizations and NGOs. Mutual affords were directed to stop the mass violations, to overcome the consequences of the war crimes and to prevent violations in the future. Diplomatic affords of European institutions were combined with the politics of sanctions, peace enforcement and NATO air bombing, which finally stopped war crimes in Bosnia and Herzegovina, Croatia, Kosovo and Macedonia. There were specially created UNPROFOR, UN Commission Experts, ICTY and number of missions to deal with the issues to stop war crimes in the former Yugoslavia, to investigate mass violations of the human rights and to punish the organizers and executors of the war crimes. The authorities of the former Yugoslav republics primary were delaying the cooperation with the International Tribunal, but under the pressure of the EU and USA finally were actively involved into the process. Additionally to the process of research of the war crimes and litigation of the war criminals, there were organized a fruitful cooperation between international institutions and local volunteers and NGOs in the field of humanitarian and human rights aid. The main affords were focused on the emergency aid for refugees, displaced and affected persons, financial aid from donor countries, landmine problem, cultural reconstruction and rebuilding of the social infrastructure, housing and humanitarian sector, reorganization of police, court, political and legal systems in former Yugoslav republics. National NGOs dealt with the realization of long-term projects of "peace activism" and "dealing with past". The main attention was paid to the forming of nonviolence culture, ethnic and confessional tolerance in post-Yugoslav societies. In the activities of the intergovernmental organizations and NGOs of both international and national (local) levels we can define two main periods: "war" and "post-conflict", which differed by main priorities in the overcoming of the war crimes consequences. Finally, with the creation of the Regional Commission Tasked with Establishing the Facts about All Victims of War Crimes and Other Serious Human Rights Violations Committed on the Territory of the Former Yugoslavia in the period from 1991-2001 the initiatives in peace-building processes, which combined the affords of international and local organizations, was mostly redirected on the national level.
