What was the real intent of George W Bush in the decision to invade Iraq in 2003?

[buritobr]

What do you think George W Bush was thinking when he decided to invade Iraq?
Here I list the hypothesis discussed by the media at that time.

Since many insane rulers really believe in their own lies, we cannot eliminate the hyphothesis that Bush really though Hussein had dangerous chemical and biological weapons, he really though about Al Qaeda or the possibility of liberating Iraqi people.
George W Bush might be considering that his father's job was not complete, since the Iraqi army was sent away from Kuwait but Hussein was still ruling, and so he could have though that the complete job should have done.
There were some hypothesis related to oil, and some of them were contradictory. The US government could have the intent to make a war in order to raise the oil price, since this administration was friendly to oil companies. But the real intent could be remove an enemy government in the Middle East in order to reduce OPEC's bargaining power so that oil price could be reduced and benefit the US, which is a net oil importer. Or maybe he wanted only business oportunities for American oil and building companies (and Tony Blair to British companies).
Since Iraq is close to southern Russia and western China, the intent could have been increasing the military presence in the region.
Another possibility is that the US government wanted to build something like Chile in the Middle East: an example of a sucessful free market economy in a region in which even in capitalist countries, the governments are not very free market friendly. Since there was no local Pinochet, the Americans wanted to do it through direct occupation.

Maybe, there were many of these motivations, but what do you think about the most important one?

[buritobr]

The option "complete his father's job" is leading.

I remember that time, the media named this option "the freudian explanation"