The question of what causes war has concerned statesmen since the time of Thucydides. The Steps to War utilizes new data on militarized interstate disputes from

America has been at war for years, but until now, it's not been clear with whom. We have been fighting without being clear for what. We have been waging war wit

A scientific explanation of the onset and expansion of war and the conditions of peace.

War is a fact of human nature. As long as we exist, it exists. That's how the argument goes. But longtime Scientific American writer John Horgan disagrees. Appl