but I don't think Stalin was the kind of man that would chase petty revenges.
?!?!?!?
First off It's not petty. It's the difference between having an allied country in your orbit and having a country with mixed allegiances. Its like when people say Trotsky was killed for something he said in a meeting or because Stalin didn't like him, it's missing the forest for the trees. Secondly I genuinely cannot think of a man who more decidedly settled things than Stalin.
Tito was too ambitious about its control area in the Balkans and wanted to get closer to the USA, which obviously was not accepted well by Stalin. Is this the full story, or are there more to it?
This isnt wrong but it is stretching things to be unkind to Tito. Tito saw surrounding countries populated by slavs as natural places to extend Yugoslav influence. Albania should in his view be included in the Yugoslav federation. An effort Stalin opposed. But also Tito didn't think that Stalin's view that communists should more or less leave Europe alone and let the capitalists have it made sense and he supported Greek communists. It was more or less the same thing that later caused the sino-soviet split. Soviet refusal to see other communists as equal participants in revolution and ambition of the non-soviet leadership.
Tito and Stalin split, Tito purged his government of Stalin loyalists and Staln tried to start a military coup (Or at least support an anti tito movement) in Yugoslavia and later tried to assassinate Tito at least once (Altough that was cancelled when Stalin died)
After the split the USSR closed off trade and Yugoslavia turned to the US because their economy had been reliant in East Bloc imports.
Now there are hundreds if not thousands of nuances to every single statement there, and i don't know enough about it to elucidate more.
Ediit: the specific threat you refer to is supposedly a letter sent to Stalin. Now the thing is, we don't know if that is a real letter. Most of Stalin"s letters and notes were destroyed following his death.
The source for it existing is oral history. Roy Medvedev ran around with a dictaphone recording an oral history of the Stalin period in the late 50s and synthesised his interviews into a "dissident history".
His source is Aleksei Snegov who gave an interview stating the existence of such a letter.
