US military spends a trillion dollars on military every year. Iran can keep the straight closed with access to whatever drones are available at the nearest Walmart haha. They could send out a thousand soldiers and say walk to the nearest Walmart or hardware store and buy the cheapest drone you can find and walk back. With this strategy Iran can keep the straight of Hormuz closed indefinitely.

Obviously they don’t have to walk to Walmart they have a whole country of infrastructure. Even if Israel nukes Iran they can keep the straight closed indefinitely.