Britain does though claim sovereignty over far away locations such as the Falkland Islands and Gibraltar. The controversy of those claims is not mitigated that they are populated by ethnic Britons who immigrated on assumption of British control.  Ethnic nationalism has a very bad history, both around the world and in the Balkans in particular. Out of the nineteenth century explosion in popularity of nationalistic ideologies grew the bitter tensions and wars of the twentieth century. The last thing that we should be doing is promoting a continuation and an extension of this divisive and destructive way of perceiving the world. Ultimately, an independent state would be created just because it was believed that there is too much bad blood between the Serbs and Kosovo-Albanians for them to live in harmony. To create an ethnically exclusive state because of animosity with another ethnic group is not a solution; it is a recipe for disaster.