But maybe Iran's most effective weapon is intangible, as well as permanent: geography.
Their coastline includes one side of the Strait of Hormuz, one of the most tactically significant stretches of water in the entire world.
The Strait of Hormuz connects the Persian Gulf with the Arabian Sea, the Indian Ocean, and the rest of the globe.
One third of all the world's oil is moved through the strait.
Were Iran to cause a disruption in the Strait — perhaps by mining it, if conditions in the region deteriorated badly enough — it would have a catastrophic effects on the price of oil and could bring the global economy to its knees.
The U.S. Navy has mine-detection, but the average oil tanker does not.
Iran's biggest threat arguably doesn't come from their missile systems, or their nuclear program, or any of their jets.
Interrupting service in a strait that they could feasibly dominate could be a winning end game for Iran if the country's theocratic government ever feels its existence is threatened.