The analogy is about fighting two enemies at once. It doen’t matter whether AQ and Saddam were “sworn enemies” at all. What matters is that both AQ and Saddam were our enemies. As for the WWII analogy, it wouldn’t have mattered that Japan and Nazi Germany were allies (especially since they never collaborated at all beyond Hitler sending them some plans for the Me262 that never got the Japanese anywhere, their alliance was on paper only and wasn’t much more meaningful than Saddam claiming that he “hated” AQ) what did matter is that Imperial Japan and Nazi Germany were regimes that could not be tolerated and left to thrive on our planet. They would have to be destroyed by the free world regardless of whether they were “friends” on paper or not. Likewise, we as the free world cannot tolerate a Saddam or AQ. One down….