1945-1991: Cold War world Wiki

United Nations Security Council Resolution 3, adopted on April 4, 1946, Requested the Soviet Union remove them as fast as possible, but accepted this could not be as fast as stated in the Tri-Partite Treaty. Soviet forces were in the Republic of Mahabad and the west of the [South] Azerbaijan People's Government's territory. Iran crisis of 1946 was an early test of the post World War 2 resolve to make the world a better pace.

United Nations Security Council Resolution 3.
Nation. For. Against. Abstain.
Kuomintang China. *
Provisional Government of the French Republic. *
United Kingdom. *
United States. *
Soviet Union. Did not turn up.
Australia Refused to vote.
Brazil. *
Netherlands. *
Egypt. *
Mexico. *
Poland. *
Sources. https://en.wikipedia.org/wiki/United_Nations_Security_Council_Resolution_3, https://en.wikisource.org/wiki/United_Nations_Security_Council_Resolution_3, http://daccess-dds-ny.un.org/doc/RESOLUTION/GEN/NR0/036/66/IMG/NR003666.pdf?OpenElement and http://www.un.org/en/ga/search/view_doc.asp?symbol=S/RES/3(1946).

Franco regime in Spain, Greek Civil War of 1946–1949, Republic of Mahabad, the and the [South] Azerbaijan People's Government were early tests of the UN's intention to stop a new world war breaking out so soon after World War 2 had ended.