In my games, I noticed an astonishing immobility of the allies...
I'm playing Italy and decided to not join Axis (it would have been a suicide enter in war in early 1939, and even in late '39 when Germany defeated France), but I created an alliance of my own with Bulgaria, with which I invaded Greece (defeated then became my puppet), Repubblican Spain (defeated, I annexed Catalunia and Valencia, while Nationalist became allies) and Yugoslavia (defeated and created Croatia as mine puppet while I annexed some regions)...
Meanwhile Usa, Uk and the others allied powers focused their attention to Japan, ignoring Germany (Axis with Hungary, Finland, Sweden, Rumania and Slovakia), that started Barbarossa but with poor result: after three years of fierce fighting, ALL EUROPE was occupied by Soviets that created socialist republics in Germany, Poland, Rumania, Czecoslovakia, Belgium, Netherlands, Finland and north France.
Usa and Uk stayed at the window all the time watching soviets occupying all western europe, that's strange!
Chapter France: now (it's december 1946) I have three states. Free France (colonial regions), Vichy France (not at war with soviets and so not occupied) and socialist France (the former zone occupied by the nazis)...
now there is an iron curtain that divide Europe between...north and south (north communist and south fascist)....
I'm in dangerous situation 'cause Usa-Uk doesn't want me to join their alliance, and Warszaw's Pact forces are too too powerful for my union (I'm giving all technologies to my allies, but their armies are still very ill-equipped and outnumbered by communist's ones...