Where did the United States go wrong? Much has been written and much more will be written, but a few general trends emerge. First, the enemy, “terror,” was an abstraction, and it’s impossible to wage war on an abstraction. Second, we didn’t understand the nature of Afghanistan—or of Iraq, or Syria, or Libya. America was successful at rebuilding post-tribal, modern societies like Germany and Japan, but not premodern societies. No one thought to ask whether the democratic institutions that emerge in high-trust societies can be replicated in societies with traditions of religious and ideological extremism, literacy rates below one-third, or consanguineous marriage rates of nearly fifty percent—a strong indicator of low social trust. Third, we possessed neither concrete objectives, nor a coherent strategy, nor a definite timeline. Essentially tactical approaches like counterinsurgency and counterterrorism served as substitutes for strategy, and few elites took notice. Then, as is often the case in the region, militaries that cohere around a religious identity proved stronger than those that cohere around a national identity. Perhaps above all, there was a misplaced confidence in the tools of the state and of statecraft. As many have noted, America is itself in need of nation-building and is in no position to lecture others.

The hubris of U.S. foreign policy elites over the past twenty years followed in large part from the misapplication of the lessons of World War II to the Global War on Terror. America was the only real victor of World War II, while the other great powers were devastated. So, we inferred that war could solve more problems than it actually can. Nevertheless, the last two decades of failed policy in the Middle East have produced several victors: China and Russia, Iran, and perhaps also Turkey. And arguably the Taliban, and even Al Qaeda and its outgrowths.