The U.S. DID have a post-war plan.

There are now new allegations by British memos that accused the Americans of little or no post-war planning. I think we all know that is patently false. The U.S. did have a plan. From observation, it can be seen that the U.S. plan was this:

Depose Saddam Hussein from power;

Rebuild the oil production facilities;

Give Iraqis a true sense of freedom by allowing them to enter government buildings, museums and other civic structures freely, and take whatever they needed (or felt they needed);

Allow anti-Hussein and pro-Hussein forces to freely associate within Iraq's cities and regions;

End the war by publicly declaring military operations to be over, and "Mission Accomplished";

Round up un-armed Iraqis, subject them to humiliation and torture in one of Saddam's prisons so they wouldn't get too comfortable with the power vacuum;

Allow Iraq to become truly free ("Freedom is on the march");

Leave Iraq in a truly free anarchic state, and pull the troops out before expectations of a representative democracy can be established.

Given these postwar plans, I'd say the Bush team are about 80% successful. Way to go, America!