They would have to do it the old fashion way.....earn it.
They would have to use Kuwait, and take some Iranian cities on the Coast across from the UAE and Arabia.
Pakistan could take Zahedan and Bandar Abbas. The Saud would have to take Bushehr, Ahvaz, and Shiraz. They could cut Iran in half. Iran would have a very difficult time getting supplies from the sea. Then they could bomb away with Tehran and any northern cities Iran has. Reducing them into rubble.
Of course, we could close off escape thru Iraq and Afghanistan. Leaving them only Turkistan to run too.
To solve the problem and future problems Iran needs to be reduced to a population under 10k. Then problem solved.