Under the Soviet Union , Joseph Stalin decided Deciding to make the Nagorno-Karabakh region , historically Armenian and with a majority-Armenian population , an autonomous oblast in Soviet Azerbaijan .

This , and the lack of air support Supporting from the Soviet air base five-minutes flying Self_motion time away , led to allegations Statement that Joseph Stalin tactically halted Process_end his forces to let the operation fail and allow Preventing_or_letting the Polish resistance to be crushed .

Winston Churchill pleaded Request with Stalin and Franklin D. Roosevelt to help Britain 's Polish allies , to no avail .

Later Joseph Stalin reduced Cause_change_of_position_on_a_scale his ambitious plans to a relatively small campaign codenamed `` Operation Little Saturn '' .

Greece in the end was funded by the US ( through the Truman Doctrine and the Marshall Plan ) and joined Becoming_a_member NATO ( 1952 ) , while the insurgents were demoralized by the bitter split between the Soviet Union 's Joseph Stalin , who wanted the war ended Process_end , and Yugoslavia 's Josip Broz Tito , who wanted it to continue .

The Tehran Conference Social_event ( codenamed Eureka ) was a strategy meeting Social_event of Joseph Stalin , Franklin D. Roosevelt , and Winston Churchill from 28 November to 1 December 1943 , after the Anglo-Soviet Invasion of Iran .

: `` Qaʾilih Âzarbâyjân '' ) in the Iranian sources , was one of the first crises of the Cold War , sparked Causation by the refusal of Joseph Stalin 's Soviet Union to relinquish GiveUp occupied Iranian territory , despite repeated assurances .

However , when this deadline came Self_motion in early 1946 , the Soviets , under Joseph Stalin , remained Presence in Iran .