A "souvenir" made by the SS: the shrunken head of a Russian POW 
Found in the pathology block of Buchenwald: tattooed and tanned skin, two shrunken heads of russian POWs, a lampshade made of human skin.
There are always at least some atrocities in any war. But there's a big difference between atrocities committed in the heat of battle, or by soldiers acting on their own initiative, and atrocities on a large scale deliberately planned and ordered from the top. Large scale murders in violation of the Geneva Conventions were Soviet policy, coming down from Stalin himself.
A BIG difference.
Just one example: American and British POW pilots - officers included - were ordered murdered by Hitler - some killed as they landed others murdered by the SS after the "Great Escape". As bad and murderous as the Soviets were - better them holding Eastern Europe than the genocidal Nazis.
Most of those Eastern European countries that fell behind the Iron Curtain (but not all) were members of the Axis powers (Bulgaria, "Slovakia", Romania, Hungry, Latvia, Estonia, Lithuania, Finland). Americans did not care to fight for their fates outside of regretting what happened to Poland and the Czech part of Czechoslovakia. American attitudes to these eastern nations was to hell with those ex-Nazi scums. The Republicans were even against the Marshall Plan to rebuild Europe (east and west) if I recall.
Side note: The Poles elected the reformed Communist party over Solidarity. Poland is currently ruled by the reformed Communist party - democratically elected.
Neo-con Trostkyite (with an ax to grind against the nation that betrayed Trotsky) influenced revisionist history can only go so far.
A "souvenir" made by the SS: the shrunken head of a Russian POW Found in the pathology block of Buchenwald: tattooed and tanned skin, two shrunken heads of russian POWs, a lampshade made of human skin.