We will not enter Iran, but we will defeat any Iranian incursions with SOF team working with Kurdish troops and airpower like we did with Northern Alliance in Afghanistan against Taliban forces. However, the fight will ignite Kurdish nationalism in Iran, and we should support their uprising with arms and resources. Iraq will be their sanctuary (where Iran can not enter) and Iranian resources will be spent fighting a Kurdish insurgency in Kurdish parts of Iran. That means the Iranian must re allocate resources to defend themselves then sent out of country to Hamas, Hezbollah, and Iraqi insurgents. Iran has to measure twice before they start something that they cannot finish.