Maybe the Egyptian Army "needs" a worthy enemy to bring the situation "under control."
I honestly can't imagine Western nations being dumb enough to allow it, but Russia and the E. U. stand an even chance of being it's first second target.
Europe is big enough to adsorb the first hit, far enough away to present targeting hazards, and has sufficient nukes to retaliate with sufficient force to be fatal to the Iranian regime. Meanwhile, the mullahs are just dumb enough to try Israel first. Their problem is that they'd need to MIRV to be sure to beat Israel's ABM capabilities. Yet if the first try fails, my bet is that they're toast.
For all the bluster, I have a hard time seeing Iran as stupid enough to hit Israel. Those guys make comments for domestic consumption, but when push comes to shove, I’m not convinced they make a move at all.
Besides, how do you hit Israel without destroying the West Bank and or Gaza as well?
My thoughts on hitting Europe or Russia, would Iran providing tech to terrorists, and watching them do their work by proxy. It wouldn’t be a direct strike. Too easy to pin blame.
Could a device be smuggled into Israel? I honestly don’t know. That wall has helped a lot. The sea option is still there.
I think Israel would take out Tehran immediately after any strike of this nature against Israel.