"This was aided by paying US companies to rebuild Europe and Japan."
How much money was spent on manufacturing here for both versus total GDP?
"If Britain or France has come out of the war unscathed and been able to rebuild the rest of Europe, the postwar history of the United States would have been significantly different."
The US would have still been fine and given the same policies minus the Marshall Plan, we would have had less government spending. Also, if the UK and France came out unscathed then the US would probably have not needed to enter the war in Europe.
How much money was spent on manufacturing here for both versus total GDP?
"If Britain or France has come out of the war unscathed and been able to rebuild the rest of Europe, the postwar history of the United States would have been significantly different."
The US would have still been fine and given the same policies minus the Marshall Plan, we would have had less government spending. Also, if the UK and France came out unscathed then the US would probably have not needed to enter the war in Europe.