The world was very different back then. If the US had been a super power in the 17th or 18th century you can be certain they would have colonized other countri

The world was very different back then. If the US had been a super power in the 17th or 18th century you can be certain they would have colonized other countries as well. Regarding WWI and WWII, Europe has never had the homogeneous culture of big states like the US. Again, wars have been the norm for most of humanity. The current peaceful era is really an anomaly.