Do you think that the terrorists will pick up their weapon caches and leave? I suspect that door-to-door fighting will be needed as it was in Germany during WWII, with the vermin fighting to the last man. Should I be wrong and all the vermin leave before the bombing started, why then we would just have to find and destroy all of the weapon caches without dropping a single bomb. Given that the Sunni Triangle is occupied by the minority tribes that ruled the country with an iron fist under Saddam, I would assume that they want their power back, and, as has been demonstrated time and again, will not stop their destructive ways as long as they are allowed to maintain their base of operations IMHO.
They have not been allowed to retain their base of operations.