I suspect he'll launch an attack, everyone will condemn him, including his successor, who will privately thank his lucky stars Bush had 'nads.
Just as happened with Osirak...
"Many foreign governments, including the United States, condemned the operation, and the United Nations Security Council unanimously passed UN Security Council Resolution 487, which “strongly condemns the military attack by Israel in clear violation of the Charter of the United Nations and the norms of international conduct.” (S/RES/487).
The operation was also widely criticized by the Israeli left-wing opposition, who claimed that a major reason for the specific timing of the operation (as opposed to its necessity, which was generally accepted) was the proximity of the general elections only three weeks later."
http://en.wikipedia.org/wiki/Osirak