Bush wants to deal with this before he leaves office. A military stike is unlikely because he is unwilling to let his public opinion from at home and with the international community suffer more than what it has. But, it is the main topic of the UN right now. Anyway, the attack would be a strategic air strike campaign, much like the shock-and-awe campaign in Iraq. Only nuclear facilities would be targeted. But Iran has stepped up their military training to display their military might with their ships and helicopters. The best news is that they do not want to put any of our troops on the ground.