alt Hacker News> I could say the same about the period of peace in the USA which is only from 1865
You can't really compare a period of 160 years to a period of 80, especially given that there's war in Europe once again so the streak is already broken.
80 years is actually shorter than the gap between the Napoleonic wars and WW1 (~100 years), and only represents one generation that lived and died without a local war. On the other hand, 160 years out of 249 is 64% of the existence of the US spent in one continuous period of no widespread local conflict, and represents 5 generations that were born and died without any war on their doorstep. How is that an exception?
> Europe had been on fire off and on for hundreds of years.
The point was that armed conflicts also happened on North American soil (even if consider only USA soil) for long time, so not so different for what happened in Europe. The last period of peace is as much an exception for one as it is for the other given a significant part of the history of the continents.
Also, if we think of countries, there were various European countries that did not participate in or had fights on their territory, during neither WWI or WWII (Ireland, Sweden, Switzerland, Portugal, Spain) and some of those did not have a war on their soil for similar as USA ...