I have been looking at this for a long time now. I believe that yes Israel will have no choice but strike Iran, this will bring Russia and China into the fight at some point.
This will happen sooner then most people think and life as we know will be changed forever. When will this happen? Not sure but my guess is within a years time.
Now is a great time to get ready for the coming problems that will result in hard to get fuel, high food prices and gangs running a muck.
Get ready for it, it will happen soon.
"A free people ought not only to be armed and disciplined, but they should have sufficient arms and ammunition to maintain a status of independence from any who might attempt to abuse them, which would include their own government."
- George Washington