"What will Barack Obama do? This is the question posed by everyone. What will he do in Iraq? What will he do in Syria? How does he intend to address Russian-Iranian opposition? How will he wage a war that requires Sunnis in Iraq to be ground soldiers, when they are asking for clarity "before" and not "after" military action? How will he reassure his partners in the alliance that he is truly serious on Syria?
The US president may decide in the end that this is not his war, and that it is best to return to his country to fortify it against terrorism, and let ISIS unleash itself on everyone until it commits suicide or until it is slayed eventually. This is perhaps the course he might choose if it appears to him that all those who want him to fight their wars on their behalf will meet his war with ingratitude and petulance."