Summary/Abstract: In this whole period from Congress of Berlin until the beginning of the First World War (1878–1914) Great European Powers (Austria – Hungary, Russia, Ottoman Empire, Great Britain, France, Germany and Italy) tried to achieve their geopolitical interest in territory of the Balkan, eider by making one-sided moves, or by mutual agreement over some from (newly) established Balkan states. Greece, Serbia, Montenegro and Romania wanted to extended their territories, and Bulgaria to receive International recognition of its Independence (which came on 1908), Albanian and Macedonian Nationalistic movements wanted to establish their own states An achievement of these goals primarily depended from the standes of the Great European Powers towards the future of the Ottoman Empire (because territorial extensions of the mentioned states or establishing the new ones will mean separation these territories from the Ottoman Empire), as consequence of (interest) of these events will have on the Great Powers and their internal relations, and after the support which Balkan states had from some of European Powers. Balkan Nations had until achievement of independence one common enemy – Ottoman Empire, and after that they begin internal dispute (and war conflicts) for the territories which they consider to be theirs (Second Balkan War). Serbia, as the other Balkan states, tried to extend their territory and influences on the territories where Serbian people lived, but achievement of these goals confronted the interest of the Austria – Hungary (but and some of other European Powers). “The last move” of Austria – Hungary towards Serbia was a military attack on July 28th 1914 which marked the beginning of the First World War.
