If the United States attacks Iran preemptively... the signatories of the Nuclear Nonproliferation Treaty [NPT] do have certain obligations... basically Russia and China, as well as France and the United Kingdom, will "provide immediate assistance" to Iran if it "is a victim of an act, or an object of a threat of, aggression in which nuclear weapons are used." Interesting, eh? So if Bush-Cheney bomb Iran, the other NPT members are required under international law TO DEFEND IRAN.So, if we attack Iran, out allies are obligated to defend Iran against us. Bush-Cheney could end up forcing the rest of the world to declare war against us.
Now, that's what I call a legacy.