The reason that war is such a fascinating subject for writers is because it's a revealer. Put a bunch of people in an adrenaline-fuelled life-or-death situation and their fundamental behaviours are exposed the scrim is taken away and the motivations behind each personality come out to play.
If Saddam rejects peace and we have to use force our purpose is clear. We want to seriously diminish the threat posed by Iraq's weapons of mass destruction program.