Iraq was not a pre-emptive attack. Saddam failed to comply with the conditions of the Cease Fire, and the pace of combat re-escalated. The UN had already authorized the Gulf War, so we didn't really need their approval to resume operations. It would have been nice to have the UN on board, but wasn't absolutely necessary. So, no we didn't thumb our nose at the UN, and it did not pass a resolution saying that we should not resume combat operations.
Farmerman, I don't know who it is that refers to the UN as a "Commie, pinko outfit". I haven't done that nor has any of the other participants here, so far as I know. Can you cite any administration statement that even insinuates that the UN is a "Commie pinko outfit"? Now, I will admit to saying that the UN is about as effective as the League of Nations was, and that it is unable and/or willing to do anything in response to worst and most brutal dictatorships. The UN, it seems to me, is dominated by a bunch of little nations that are more interested in picking our pockets than in helping themselves. Need someone to blame for almost anything, and the U.S. is a handy target. Not only that, but you can find a whole passel of Americans to agree with their charges. The UN does do some fine work with refugees and providing emergency aid, so long as the United States provides the aid and the lift to deliver it. Personally, I'm not impressed with the UN.
However, we are members and our leaders over the past sixty years have agreed to many of the UN's treatys and obligations. As the military arm responsible for enforcing the Iraqi Cease Fire, we acted on their behalf. We were obligated to act. Does that mean we didn't have other reasons to take Saddam off the board? Certainly not. Saddam encouraged the belief that he had, or soon would have, weapons of terror and atomic warheads. He denied it all, with a shrug and a wink. In the absence of HUMINT and effective UN inspections, virtually everyone in the world believed that Saddam possessed weapons that he pledged not to have. He was open in his admiration for Hitler and Stalin, and modeled his government on them. He made no secret of supporting and sponsoring suicide bombers and terrorist acts.
The fact that much of the world's oil reserves are located in Southwest Asia must have been a factor, but not the determining factor. Saddam was taken down because he was a destablizing agent in a volitile region of the world. Iraq lies near the heart of the region that international radical Islamic terrorist regard as their own. We are at war with the the terrorists, and it is far better to carry the fighting to them than to leave them the initiative to strike us where and when they please.
The world is safer today because of our being in Iraq, but the fight is not over yet. The enemy is still capable, but has suffered terrible losses. We need to keep the pressure up, and be patient.
What would U.S. Grant have done?