The end of the World War II at the same time marked the beginning of the breakup war coalition. The Soviet Union tried to consolidate its leading position in its own sphere of interest defined by inter-ally agreements made during the war. It was a heterogenous space in the national, political and economic sense where the local Communist parties that were envisaged to be a support to the future Sovietisation of the region, did not have a strong basis. The exceptions were Yugoslavia and, to some extent, Albania. The Yugoslav Communists, who managed to carry out a revolution during the anti-fascist struggle and in an absolutely strategic location, imposed themselves as an important ally. For the Yugoslav Communists, the Soviet Union represented not only an ally, but also the country that was a role model for the future transformation of the Yugoslav State and society, while for the Soviets Yugoslavia was more than a regional partner and faithful ally. Although the newly signed interstate agreements of a political, military and economic character announced the development of future cooperation, already at the beginning of 1947, the first signs of a more serious crisis in Yugoslav- Soviet relations appeared. The crisis had a number of causes, and it also threatened to serious conflict that would have lasting consequences for general relations between the two countries.