By this, very strange logic, @bershidsky, then Poland was Hitler's ally in 1938?? it participated in the invasion of Czechoslovakia.... and, by the same token, you could argue the UK and France were allies of the Nazis because they signed up to the Munich Agreement? https://twitter.com/rprose/status/1215516103142780933

Also, British records show that Moscow proposed an alliance with Britain & France BEFORE it signed the Molotov-Ribbentrop pact, but London & Paris didn't even respond. https://www.telegraph.co.uk/news/worldnews/europe/russia/3223834/Stalin-planned-to-send-a-million-troops-to-stop-Hitler-if-Britain-and-France-agreed-pact.html

Given the West wouldn't deal with Moscow, but had already made an arrangement of their own with Hitler, what choice did the Soviets have? Yes, Poland suffered tremendously. But Warsaw itself had no scruples about seizing part of Czechoslovakia only a year earlier.

Russia lost between 13-20 million people fighting the Nazis. Thus, it's hardly surprising the Russian government reacts badly to historical revisionism which attempts to put equivalent blame on Moscow, like Berlin, for starting the conflict. The EU resolution was preposterous.

Btw, I’ve always thought there was no WW1 or WW2, in Europe. It was the same conflict, with an interregnum period of delicate truce. Although fighting raged anyway in Spain, Ireland, Finland, etc. So, basically, it all started in Sarajevo in 1914, and ended in Berlin, in 1945.