Personaly I care nothing for wha CAN be done . It means nothing . A person CAN spontaneously combust . A nuclear reactor CAN spontaneously explode . A steel beam CAN have a hidden fracture which renders it useless . Many things can happen but are statistically improbably to the point we can ignore them . Maybe because of my background engineering with emphasis on statistics but I tend to think of humans as statistical events . Some people say 50 % want peace at all costs , some people say 30 % will use violence to achieve their ends if no alternative exists , and some people say 20 % will use violence to achieve their ends even if theres another way . Now we can argue about the probabilities , but it will never be zero . So when you say if we could all just stop fighting and have peace thats like saying if the probability that someone uses violence is so low that we can ignore it , much like we can ignore the possibility that someone spontaneously combusts . I do not think that is possible . But lets anyway lets say it happened . Let ' s say that somehow every person on Earth spontaneously decided to stop fighting . Then every country on Earth moved their defense budgets into education . Cool . But now the first person who uses violence to achieve their ends has a super easy time . Not only that but the world is unable to stop them . They ' d have spend money on defense again before they could do anything . So not only is world peace a statistical improbability bordering on impossible , but it ' s also inheriently unstable . The closer the world gets towards world peace , the more incentive there is for war .