Not to mention the American civil war, which had only superfluous regligious motivation (the interpretation of slavery in the Bible). I am European and haven't

Not to mention the American civil war, which had only superfluous regligious motivation (the interpretation of slavery in the Bible). I am European and haven't read in detail about this conflict, but my impression is that it was to a large degree caused by cultural disagreement and to a lesser extent about territory. >600,000 dead.