I'm kicking around the idea of a world that never had the Cold War happen after WWII ends (mainly with Stalin dead and replaced by a reformist fellow like Beria in spite of the odds and FDR living), and that many of the allied powers engage in a series of disarmament campaigns (yet still have a sizeable arsenal for UN stuff of which most of the resources are going into it). So I wonder how would this post-WWII disarmament thing affect military developments? For one thing nuclear weapons would cease to exist and that Germany's and Japan's militaries (or something close to one in regards to the latter) would be either smaller or non-existent given the lack of a need to keep them around; the space race may or may not exist depending on how much stuff the world powers are willing to give in the post-war years.
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