The Soviets didn't "liberate" Europe, they conquered it just like the Nazi Germans did. If they had "liberated" it, they would have done what the WAllies did in France, Denmark, Norway, Belgium and Holland. Pulled out at the end of the war and let the citizens create their own government. Instead, the Soviets imposed a government in every country they captured of communists made up of communists approved by Stalin. The only country to avoid that fate was Yugoslavia, which was ruled by Marshal Tito, a home-grown communist who was cool towards Stalin since most of his aid during the war came from the WAllies, NOT the USSR.