W henever and however America’s war with Iran ends, it has both exposed and exacerbated the dangers of our new, fractured, multipolar reality—driving deeper wedges between the United States and former friends and allies; strengthening the hands of the expansionist great powers, Russia and China; accelerating global political and economic chaos; and leaving the United States weaker and more isolated than at any time since the 1930s. Even success against Iran will be hollow if it hastens the