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Let's assume that by some means, WW2 is extended by a year or so in Europe, and the USA decides to use nuclear weapons on Germany (assume Berlin and Nuremberg are the targets).

Scenario:
- D-Day messes up, while the Italy offensive has been met with failure
- Germany wins a slim victory at Stalingrad, delaying the inevitable defeat by a year, with the Russians on the outskirts of Poland
- Stalin demands that the Americans do something about the Germans, leading to two nuclear weapons being used on Germany in October 1945, leading to surrender by December. Assume that Hitler is vaporised in one of the blasts.

How would this impact on post-war politics?
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