We have very strategically aided the Muslims in the quest to unite under a Caliphate. We leave only Iran alone, in hopes that they will be the ones to control the non-radicals amongst them. When the revolution begins in Saudi Arabia, the plan will be nearly complete. Just awaiting the arrival of the Mahdi, who will declare the entire world as Muslim.
The good news is that, the REAL Messiah, the GREAT KING Jesus will NOT ONLY RETURN, but DISTROY the anti-Christ Mahdi.