This gets asked a lot on War forums and is usually always unanimously agreed that Europe would win and without much difficulty either.
North America just wouldn't have anywhere near the numbers to be able to win. Europe would have many times the amount of special forces who would wipe out all of the important US leaders, this would include the SAS who are the best special forces unit there is.
If US lost to Vietnam and had trouble with the middle east there's no they'd win against Europe.







