This is amazingly important, being as old as I am, I had the benefit of getting a good education on 20th Century history, particularly around the wars. The insights are everywhere:
when Operation Barbarossa rolled across the steppes, who could not have been more welcoming to the Nazis and had enough volunteers to create their own Nazi regiment? (Clue - begins with "U", ends in "E" and has "krain" in the middle.
what policy device did Roosevelt use to trigger Germany into hostilities against the US to justify entering the war in Europe (admittedly with a little help from the Japs) - that's right "Lend-lease"
What nation suffered most at the hands of Nazis in WW2 than any other, the same nation that paid the highest cost in terms of lost lives and is therefore the best qualified nation on Earth to be able to judge the rise of Nazism on their borders and have the best reason to do everything in their power to nip it in the bud - that's right Russia!
I could go on and on and on and on and on
This is amazingly important, being as old as I am, I had the benefit of getting a good education on 20th Century history, particularly around the wars. The insights are everywhere: