also, the US had a major advantage in terms of geography. the country is sided by two major oceans from both sides without any neighbour who could form a threat

also, the US had a major advantage in terms of geography. the country is sided by two major oceans from both sides without any neighbour who could form a threat. compare this to pre ww1 Europe, which was a tinderbox thanks to multiple empires (with a major history of going to war with each other for resources or people) becoming rapidly industrialised and waiting to get back "their land/people" from a precious war.