1945-1991: Cold War world Wiki

The Union of Eastern European Republics and the Eastern European Treaty Organization (EETO) is formed by the Eastern European states Lithuania, Poland, Hungary, Romania, Slovakia and Yugoslavia-Albania. Greece gets observer status at the UEER. Both treaty are signed in 1964.6 București Treaty.

The member nations.
Nation. Year of joining. Year of leaving.
Lithuania 1964 -
Poland " -
Hungary " -
Romania " -
Slovakia " -
Yugoslavia-Albania " -
Greece " (observer) -