Ask, Seek, Knock

[Darkstar]

Basically what I'm trying to say is that violence is rarely an ends in itself. It's true that some people commit violent acts for the sake of violence, but if humans commited vilence against one another for the sake of violence, we would have gone extinct long ago. Cooperation is in our genes.

Or our desire to procreate is greater than our need to kill each other.

Don't you mean "our need to procreate is greater than our desire to kill each other"? How would killing each other provide an evolutionary advantage? In fact, the very existence of society is the only cause for war; without it everyone would have to kill everyone else, and the species would die. If they fight together against another group for some cause, then the surviving group will continue on, but they wouldn't fight a war for the sake of having a war. No sane nation would, even if they knew the people would not oppose it.