Khomeini and his regime in the 1980s actively encouraged Iranians to produce large families.
By 2009, nearly 70% of all Iranians were under 30. However, the country is the least religious in the Middle East.
Instead of the “armies for Islam” that Khomeini was hoping for, the youthful population is now the biggest threat to the deeply unpopular regime. We don’t need to use military force against Iran. All we need to do is help and keep its young informed.
With 70% of the population under 30, and most of the rest destitute and eager for change, peace and prosperity, in time, and not too much more time, they’ll throw out the nuts and crackers running the place.

Military force is the LEAST effective agent for change.