Whether or not we can take down the Iranian Army and its government is not in question. We could. Its what happens after that I would be concerned with. These countries do not want to evolve. Research the Iran hostage crisis of 1979. If we ever do take Iran, we better have a fool- proof post invasion plan or I am afraid we have not seen the depths of terrorism we could see.
I agree we haven't seen the full depths of terrorism from the likes of Iran. My concerns is a dirty nuke in our backyard.
But anyway, I've stated my point of view enough for awhile.
FUCK ISIS!