The McCain Doctrine

From Hendrick Hertzberg puts it, via TPM:

McCain wants to stay in Iraq until no more Americans are getting killed, no matter how long it takes and how many Americans get killed achieving that goal--that is, the goal of not getting any more Americans killed. And once that goal is achieved, we'll stay.

Got it?  The Democratic candidates, realistically, want to leave Iraq as soon as it is reasonably stable.  McCain wants to pacify Iraq and then stay, to threaten, and possibly launch further wars.