well, Israel has already fought most of its muslim nation neighbours to preserve its existance ( not lately, but a lot during the 60's and 70's ), and they sure as hell will not allow iran to develop a nuclear program with enrichment capabilities. Moreover, Israel is likely to pressure the US heavily to intervene militarily, should the UN efforts ( whatever those will be ) ultimately fail.
As stated before, I do not believe the US Forces have the capabilities to muster a full-fleged (sp?) invasion of Iran at the moment. maybe the iranian army is not that impressive ( some info here:
http://www.globalsecurity.org/military/ … n/army.htm ), but any attack on Iran would be outright war, not an anti-terrorist operation or an attempt to remove a brutal dictator ( as with saddam in Iraq ). The iranian people ( who mostly support their government's efforts ) would most likely rally behind their leaders.
Interestingly, some of the equipment the iranian army is using has been delivered by the US..
How dangerous is Iran really ? Hell, I have no idea. A lot of it is simply big-mouthed rethoric. Do they want the Bomb ? Maybe. Would the use it if they had it ? Most likely not. A lot of nations have it, and so far, only one has ever used it...
the rest knows perfectly well that a nuclear war would also turn their country into a pile of dust.
In the end, maybe the world will have to live with one more nuclear power.
But that's only speculation, of course. I sincerely hope the UN can resolve this before we ever come to considering military options.