The breakdown of relations between SFR Yugoslavia and the Soviet Union was called the Tito-Stalin Split. This began the Informbiro Period in 1948.
Josip Tito
improved for a while, but then became more strained
I have done some research and as it occurs, there was a brief period that some refer to as the occupation of Yugoslavia from the USSR. During the WWII, what was later formed as Yugoslavia was defended by the Partisans, a peoples movement inspired by communism, and one must add, the simple need for defense. The Russian forces did help in the final push against the Germans, and Yugoslavia remained communist for many decades. This is where the occupation part comes in - as the Russian forces barged in to help against the Germans, they stayed for some time. But, the country was never even remotely a part of the USSR, later there was even a fallout between Tito, the leader of the communist Yugoslavia, and the leader of the USSR at the time.
tito
Josip Broz Tito, president of the (Socialist Federal Republic of) Yugoslavia from 1945 until his death in 1980.
Khrushchev inched toward more peaceful relations with the democratic west.
Which Roosevelt?...and is it normal Stalin or rainbow Stalin?
The dispute between the Soviet Union and Yugoslavia in 1948, known as the Informbiro period, arose primarily from Yugoslavia's leader Josip Broz Tito's refusal to conform to Stalin's strict control over Eastern Bloc countries. Tito pursued an independent path of socialism, which clashed with the Soviet Union's desire for a unified communist bloc. This led to Yugoslavia being expelled from the Cominform, a Soviet-led organization of communist parties, and resulted in economic and political isolation from Moscow. The split marked a significant shift in Cold War dynamics, as Yugoslavia became a non-aligned socialist state.
what altered relationship between US and USSR after death of Stalin
Relations were made a lot worse as Berlin was more obviously divided. There were increased tensions between Russia and America because Stalin didn't want to allow the East and the West to join together and was trying to stop that. When the Berlin Airlift happened. it made Communism look bad which Stalin didn't like.
Pierre Maurer has written: 'A quoi sert la sociologie?' 'United States-Yugoslav relations' 'The Tito-Stalin split in historical perspective' -- subject(s): Foreign relations
Albert Resis has written: 'Stalin, the Politburo, and the onset of the Cold War' -- subject(s): Foreign relations