Permanent Advisor of the state team for negotiations on the future status of Kosovo-Metohija and Director of the Institute for Federalism in Fribourg, Switzerland Thomas Fleiner has warned that if the UN Security Council separates Kosovo-Metohija from Serbia, whose sovereignty and territorial integrity is guaranteed by international law through the UN SC Resolution 1244, it would be the first time in history that an organ of the UN unilaterally, against the will of the majority, breaks up a country and nation.