What if Israel attacked Iran and no one was available to retaliate?

Things have changed since the picture above was taken. Bashar al-Assad's regime is reeling. Iran's Ahmadinejad finds himself isolated. And Hassan Nasrallah is now the de facto leader of Lebanon and must realize that if he does Iran a favor and rockets Israel in the event of an Iranian strike, he could find Lebanon bombed back to the 8th century or thereabouts. The key, writes Elliott Abrams, is