I noticed that Al Jazeera
speculated a reason for the attack on the Iraq that is very similar to what Undertoad mentioned on the previous page. Al Jazeera delivered the idea differently: they proposed that the Bush Administration may have feared an alliance between Iran, Iraq, and Syria.
Unfortunately, the People in Charge should have thought of the chessboard analogy that Undertoad cited. Taking the center is very good strategy, but for a hundred years Chess players have known that attacking the center can be just as good.
(By the way, the Al Jazeera article illustrated some of the best reasons for attacking Iraq that I've heard of thus far. Potentially withdrawing from Saudi Arabia is a new idea to me, and it sounds appealing.)