Originally Posted by
Asturias56
The issue is that the Iranians may have micro-subs but the west has bugger all minesweepers these days 
That's not strictly correct.
Ukraine has 4 minesweepers currently in Portsmouth (2 x ex RN, 1 ex Dutch Navy and 1 x ex Belgian Navy), the RN has a couple left and Lithuania have them. They are all ready to sail to the Gulf once hostilities are completed.
On top of that RFA Lyme Bay is in Gibraltar with her automonous minesweeping drones along with a few other countries that have those too. Again ready and willing to sail to the Gulf once hostilities end.
The USN used to have 4 minesweepers based in Bahrain, they were decommissioned last year, leaving 4 others still in service based in Japan.