Actually, we went to Iraq to get Saddam Huessain and to resolve the issues raised in the war that had been continuing since 1991.
The war was to eliminate Saddam and to stabilize the Gulf.
The current war results from alliances developed after the invasion and is in fact a different enemy related to Al Qeada and the forces defeated in Afghanistan.
2. Stabilize the Gulf - you got to be kidding. The middle east has been at war long before America was born. Bush Sr made the right call.