Serbian conflicts with the Albanian national movement, fixed on with interests of the great powers, were transmitted in slightly changed form to the Yugoslav country after 1918. Serbia (in the Kingdom of Serbia, Croatia and Slovenia) introduced its modern political institutions and also tried to reestablish violated demographic balance on Kosovo and Metohia by repopulation of Serbian population from the passive areas of Herzegovina Montenegro and Lika and to establish modem and effective administration. However, unreconciled Serbo-Albanian conflict that was induced by Italy and neighbouring countries defeated in World War I, was even more profound in Kosovo, Metohia and north-west Macedonia as the result of Islam hostility. The interference of the Yugoslav Kingdom with the internal affairs of Albania, caused by the rivalry with Italy and fear that the independent Albanian state would permanently endanger their neighbouring areas, brought new tensions into their inter-state and interethical relations. Underdevelopment of the Balkan societies, absence of political culture and stable democratic tradition, religious ambivalence and tribal psychology together with unequal rhythms of national integration, perhaps had crucial influence on the constant development of Serbo-Albanian relations within a closed circle of difficult conflicts - in the period of great rivalry of the great powers on the Balkans. After establishing communism, inerethical conflict of the Albanians and Serbs for the territories got not only new ideological forms, but new initiations which led not only new to renewal, but even to the strengthening of old hostility. As a constant remaining stereotype inherited from the period when the Austro-Hungarian Empire dominated over the Balkans is the belief that the Serbs, though divided and carefully matched in the communist Yugoslavia, have the biggest political influence in the south-east Europe because of their strategic position in the middle of the Balkans. The prevailing of a retrograded solution of the Albanian national question over a liberal solution, as an inherited problem from the previous period was common to all Albanian movements against Serbia and Yugoslavia. The dominion of religious intolerance from the period of Abdulhamid' II reign and the policy of denying all rights to Serbs were present. Sush a policy was taken from the political practice of Austro-Hungarian Empire whose evil spirit was over the Balkans for a long time. Sush models of intolerance during the solution of the problem of national questions led to alliance of Albania and Albanian movement with the totalitarian ideologies in Italy and Germany between two wars. These are the reasons why the Albanian movement was under the Italian protectorate during World War II, and after establishing communism with Stalinist regime of Enver Hodža.