“The Russians were able to move their factories well out of reach of the Germans and could have continued to produce tanks, airplanes, etc...”
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That and the USA supplied a lot of hardware.
“That and the USA supplied a lot of hardware”
On paper Russia won with its own tanks and planes... but the US provided vast amounts of machine tools, locomotives, trucks, food, etc. Basically we rebuilt their industrial base better than ever. I wonder how many US made tools were still in use twenty and forty years later. We gave them such a good foundation it carried them on momentum most of the way through the coldwar.