Mia M Posted over 1 year ago Do you believe in Peace ? if yes than why? Lol why is peace "good"? I think it would be much better if people just acted in their own best interest all the time. Let their altruism be rooted in selfishness. U.S. rose to the best world power after two wars. WWII saved our butts from the Great Depression. Without abusing the Indians, Manifest Destiny would have never happened. Without slaves, pyramids or Great Wall of China could not be built. The means justify the end. If war is in our best interest in the long term, then by all means we should fight.