As the result of German-Soviet pact in 1939 it was Soviet Union that had been sudenly attacked
No - in result of Soviet Nazi Pact, Poland was attacked and destroyed, with 6 million dead. The Pact allowed Nazis to deal with Poland safely and quickly, while Stalin obtained half Eastern Europe for his disposal.
The Pact was one of the reasons why France and Britain didn`t actively help Poland - they simply knew the case was lost and their full engagement was futile.
liberated Poland in 1945
First a rogue attacks you together with another rogue, later the rogues fall out with each other and one of them liberates you from the other`s oppression. Funny. :):) And you expect the victim should be grateful?? hahaha You have read too much about Stockhol Syndrome, I suppose. :):):)
Does modern Russia not deserve to be forgiven?
Russia as a state? No, it doesn`t. As long as the Kremlin is trying to sell its lying propaganda about the Pact and alliance with Nazis.
However, decent Russians who reject the Pact are OK. :):) There are a few in Russia, but they are hushed down by imperialists and brainwashed homo sovieticuses.