> War is illegal. This idea seems obvious. But before the creation of the United Nations in 1945, no institution had the power to stop countries from going to war with each other. Although there have been some exceptions, the threat of international sanctions and intervention has proven to be an effective deterrent to wars between nations.

While this may have kept the 'superpowers' from engaging in direct warfare with each other, it has done nothing to deter them from engaging in proxy wars with eachother. And in the process, devestating the proxy countries. It seems Bill Gates, through all of his philanthropist work, would have realized this first hand.