Here is an article from American Thinker on Bush's strategy that led to the invasion of Iraq. This is the view that I have subscribed to since before the actual invasion. I think future historians, who are not concerned about internal politics in the US, will also adopt this theory for the war, whether or not they agree with the strategy. And, while the strategy was risky, it was bold, and offered long term advantage for the US.

http://www.americanthinker.com/2008/10/mccains_war_story.html

Regardless of what one thinks of Bush's strategy, it is superior to that proposed by the Democrats, which was to ignore the threat and treat terrorist acts as a law enforcement issue. (One wonders about the effectiveness of criminal prosecution of suicide bombers such as Mohammad Atta and his friends. Or, how to prosecute Muslim terrorists who attack us from Muslim countries that condone or actively support terrorist attacks.)