Iran will respond probably asymmetrically. They will not exchange hardware with Saudi Arabia. They will send the Quds Force, now highly trained and highly capable, into the oil-producing regions of Saudi Arabia, where Shia mostly work, and they will stoke those Shia, and the kingdom, and Mohammad bin Salman, this consolidating of power crown prince will suddenly have a rebellion on his hands. This could really get bad. It can go bad really fast.