No offence, but you have vastly underestimated his intentions
Amadmaninjammys is convinced that Muhammed has chosen him to fulfill Islams destiny and bring about the end of days. Everything he is doing right now centers around his belief that the 12th Imam is about to crawl out of a well, they think they know which well, and when this Imam awakens from the dead and crawls out of it, the Apocalypse starts, and eveyone dies who doesn't convert to Islam. Amadman expects this to happen within the next two years, but is hoping to speed things up.
This is all according to speeches he makes on a constant basis, and pretty much ignored by the MSM.
Ahmadinejad, albeit "immature", and given his many stupid statements, is smart enough to know that he can't fight the entire world. If he chooses to do so, he and his country will be defeated (or destroyed).
Rather, Ahmadinejad wants to be the leader of the Middle East and be the biggest threat to the West now that Saddam is gone.
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Wrong!!
Ahmad is a fanatical religious zealot bent on self immolation and the entire destruction of as much of the world as possible on his way to paradise - or hell, depending on your theology.
This is not a man or a movement that can be dealt with reasonably. Asymetric warfare does not do adequate justice to strategizing the bizzare suicidal ambitions of these crazies.
Ahmad has made it clear that his savior who lives in a well will only return when the world is thrown into fiery chaos. That is his ambition. There is nothing in Ahmad's philosophy so benign as world domination. His is unremitting madness.