Er, France surrendered in mid-1940, and they surrendered because they were not able to mount a defence to Blitzkreig, had lost a large proportion of allied forces to the overrun (including the BEF at Dunkirk) and decided to surrender Paris and survive rather than risk it being obliterated in urban warfare. Given what happened to Stalingrad that doesn't look like a bad choice.

In some ways WW2 was the last of the wars of colonisation to be attempted. Assert racial superiority, a need for land, define the "natives" already occupying it as subhuman, invade and kill them, extract resources and colonise. This time in Russia since Africa was already taken and the Americas already liberated.