We need to talk to all the players in the Middle East, not because we agree with them, but because they play a role.

As President, I will not be the last to know what is going on in my command.

Let me just say you could end this violence within a very short period of time, have a complete ceasefire - which Iran could control, which Russia could control, which Syria could control, and which we and our coalition friends could control - if one man would merely make it known to the world that he doesn't have to be part of the long-term future; he'll help manage Syria out of this mess and then go off into the sunset, as most people do after a period of public life. If he were to do that, then you could stop the violence and quickly move to management.

How do you ask a man to be the last man to die in Vietnam? How do you ask a man to be the last man to die for a mistake?

If Russia is there [in Syria] alone fighting them [ISIL], guess what? Russia becomes the target and Russia starts seeing - who knows - MANPADs will find their way in there, airplanes will fall out of the sky. They will become vilified. They'll become the new magnet, together with Assad, for the jihadis.

We do have to take the long-term view. And long term, the question to ask ourselves is whether America should attack others pre-emptively, whether she should embroil herself in wars far away from our soil, and try to bring democracy by force to the rest of the world.

My definition of patriotism is to defend your country with the truth, no matter the consequences.