This is just blatantly false. Most countries were not at war for most of their existence. Even Europe pre-WW1 wasn't at war during most of its time. There was a war going on most of the time yes but they were much more limited in scope until the Seven Day's War.

Most of these conflicts implicate only one or two countries. Europe is big, especially in historic times, there were dozens of states. It's simply not true that most countries were at war most of the times.

And even then there is a lot more to the world than Europe, which admittedly was quite warlike at times.

Please stop posting flamewar comments. Not cool.