This guy is willingly leading Iran over the edge of a precipice, he understands the consequences of attacking Israel or the US with nukes and relishes the prospect. He's a suicidal madman.
I cannot stress this enough:
In the hadith, the scriptural prophecies these guys are operating under predict that in the End Times the Muslims will start out outmanned and outgunned against a huge enemy who has tremendous power and the support of strong allies. The Muslims even suffer some setbacks -- but in the end the Mahdi defeats all the infidels and any non-Muslim survivors convert to Islam.
That is the template these guys are using whenever they look at American military might or read the morning newspaper. This is also what the mullahs are teaching the kids in their madrases.