Divide and rule is as unlikely to succeed here as regime change from 30 000 feet is.  Iranians will not let thousands of years of rich history and culture turn to rubble at their own hands.  During the June attacks people in rural areas opened doors to those fleeing the bombardment of their cities, shopkeepers undercharged basic goods and neighbours knocked each other's doors to ask if they needed anything.  The ancient Zoroastrian mantra ‘Good Words, Good Thoughts and Good Deeds’ transcends time, religion and ethnicity.