Governments have claimed to be pursuing peace since time immemorial, with seemingly little progress to show for it. Numerous treaties, declarations, laws and covenants have been signed to eliminate war or reduce its effects, yet societies continue to fight and to suffer, despite these efforts. In this talk, we will survey the historical benchmarks of war and peace in world politics, consider where things went wrong, and speculate about how peace might be achieved in the context of an ongoing global crisis.