Doubtless, all Hell will break loose.
This is something I have been pondering for some time now; Iran seems intent on proceeding with its nuclear program. Israel will never allow them to complete such a thing, which of course means overt military action. The world is an extremely dangerous place right now, and personally I see the Middle East as a powder keg ready to ignite. Iran will be the focal point.
"Israel will never allow them to complete such a thing, which of course means overt military action."
I'm not sure. Israel is totally preoccupied with Gaza---a tremendous security problem.
Taking on Iran depends on US support I think, which may not be forthcoming.
You could be right, I agree, but it seems things might slide.
Israel might look at it this way: an Arab state is bound to go nuclear eventually. Iran is developing ICBMs along with nukes, directly threatening the US. Wait and let the US handle it.
When Israel bombed the Iraqi nuclear plant, the whole world condemned them, including the US.