You’re overlooking the fundamental difference between Iranian society and Afghan society. In Afghanistan, the U.S. was trying to bomb a place that was always a collection of small feudal states into being a functioning country. In Iran, it’s trying to dislodge a theocracy that’s taken over a country that’s had orderly, centralized administration for almost two thousand years.

I wouldn’t bet on either approach working. But a good outcome in Afghanistan was always completely hopeless. A good outcome in Iran is merely unlikely.