In the first two years following the war, relations between FPRY and the Soviet leadership, which during that period sought to accommodate the USSR's Western allies demands in Europe, were not entirely free of disagreements on a number of issues, such as Yugoslavia's territorial claims to Italy's Free Territory of Trieste and the part of Austria's Carinthia populated by Carinthian Slovenes, Tito's efforts to play a leading role in the entire Balkans region, as well as over Stalin's reluctance to decisively support the Greek Communists in the Greek Civil War, who were actively supported by Yugoslavia, Bulgaria, and Albania.[19][20] Drastic deterioration in relations occurred in early 1948. The assumption in Moscow was that once it was known that he had lost Soviet approval, Tito would collapse. The expulsion effectively banished Yugoslavia from the international association of socialist states, while other socialist states of Eastern Europe subsequently underwent purges of alleged "Titoists".