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Let's say for whatever reason, von Braun leaves Germany prior to WWII and goes to America. You can use your own imagination for his reasons for leaving: offered better opportunities then he was getting in Germany, felt that the Nazis weren't interested enough in his work (not that big a stretch considering Hitler didn't really get interested until 1942 when the war started turning against the Nazis).

Now how would this affect the war effort for either side? How might the Allies have done if they'd had V1 or V2 rockets (or their AH counterparts)? How would the Nazi war effort have gone if they hadn't sunk so much time and resources into the rockets?
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