no nazis hurray

What the title says. If the Nazis had never come to power in Germany, would it have been possible for WWII to happen?

In OTL, Franklin Roosevelt planned on stepping down in 1940 in favor of his preferred successor, Harry Hopkins. However, Hopkins' health collapsed and WWII broke out, prompting FDR to run for an unprecedented third term. The POD is that German Conservatives forge a coalition to block the Nazis...

I guess this is as good a place to start as any. I'm making a computer game with an alternative history setting called Vinland: 1936. It takes place in a world where, in 878 the Danes defeated Alfred the Weak and conquered England. They used the country as a jumping off point to settle more...