If you listened to Bush's speach, and you think that's where his argument begins and ends, then he has convinced you to believe exactly what he wants you to believe. This war is being fought for all the wrong reasons, and I assure you that the Iraqi people are not one of them. Do a little research and you'll find at least 6 other countries that pose actual threats or have equally tyrannous or more tyrannous dictators than Iraq. We're doing this because Iraq has something that we want, and I don't mean being just another country to take care of.
Regardless, I hope you guys survive. It should be a rather quick war, I'd give it 2 months tops.