Americans, or other European nations didn't do ethnic cleansings like Nazis or Soviets did. We didn't invade an ally that we had a non-aggression agreement with, and we have not deported hundreds of thousand of civilians into concentration camps in the middle of Siberia. Soviets were in bed with Nazis, look up Molotov-Ribbentrop Pact, and the only reason they ended up fighting against them was because Hitler invaded them.
Yes, we dropped A-bombs on Japan, but not because we could, but because it was more cost efficient and prevented further loss of life, on our side at least.
How many Polish army officers were killed in Katyn by Soviets? They were murdered just because Soviets could. 22 thousand war prisoners murdered by Soviets, just because they could.
Soviets were the same scum as Nazis, so I'm against any events dedicated to them.