Truth be told nobody really knows because, let's face it, he tries so hard to mask who he is. I think he would have gone with the UN though as he has claimed throughout his life to believe in. (In fact, he believes that without UN approval an American life is not worth losing.)
A-to-the quote machine:
April 17th of 1994 on CNN's Late Edition, Frank Sesno hosting:
Dscussing the possibility of U.S. troops being killed in Bosnia, he said, 'If you mean dying in the course of the United Nations effort, yes, it is worth that. If you mean dying American troops unilaterally going in with some false presumption that we can affect the outcome, the answer is unequivocally no.'"
Or, to spell it out more clearly, if we have the UN's support then our cause is worth American lives. Alone, an American life is not worth losing. Certainly this only specifically applies to entering that particlar country, but to believe that at any time in American history is frightening. Just think about some of the evil dictators and empires we've toppled unilaterally (that means us and them, mano a mano) in our nation's great history.
John Kerry believed this to be true when a Civil War occured on the other side of the world. (After Bosnia and Herzegovina declared independence in '92, civil war occured).
I believe that in John Kerry's world that having Sadaam Husseine in power at the time we went to war was no more an impending threat than that of this Bosnian conflict, which also took way on the other side of the world. In both cases we were in no imminent danger and in both cases US participation was completely voluntary.
He has said that the focus of this war on terror was Osama Bin Laden. If he believes that only Osama is a threat, then he believed (logically) that Sadaam was no more than a mere nuisance, correct? So you can come to the conclusion that under a Kerry administration, the war on Iraq is one better left to the UN which is far more capable of making a difference in such a large affair.
I think under Kerry we'd have attacked Afghanistan but Iraq would have been out of the question and remained unchecked, undergoing investigations and inspections to this very day.