War is nothing new, humans have used violent conflict to settle differences since the advent of bludgeons made from rocks and sticks. War, it's what we are, it's what we do. How much more evidence needs to be provided to prove that point? Stating mankind as civilized has been proven, time and time again, to be empty rhetoric. Are we really that far removed from the animal kingdom? Evidently not.

Has there ever been peace without first fighting a war? The concept of peace would be an abstract without the concept of war.

Peace works until cooperation breaks down and a tribe covets something that a neighboring tribe possesses. For early man it was arable land, now it's mostly for resources. That is the essence of empire and conquest.

It's a sad testament to our species, but there it is.