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The end of the cold war and the transformation of the international
system resulted in a wave of extremist nationalism in the Eastern Europe particularly former Yugoslavia. This trend which culminated in the bloody war in Bosnia paved the way for the intervention of regional
and international players the main one of which was the United Nations. Moscow used the Bosnian crisis to somehow restore its nearly vanished
influence while the U.S. tried to underline the EC's incapacity to cope with regional crises and eventually got the upper hand by orchestrating
the Dayton Peace Treaty .
The purpose of this paper is to examine how the Security Council of
the UN. dealt with the Bosnian crisis and the innovating means by which the Council expanded the authorities of peace-keeping forces in
the Balkan. Particular attention will be paid to the creation of no-fly
zones, safe heavens and the u.N._Nato cooperation framework. In conclusion we will try to assess the U.N. capability in managing a highly
complex internatidnal crisis.