INSKEEP: Is the United States headed toward a permanent presence, then, in Afghanistan?

MCCAIN: Oh, I think we are, just as we have a permanent presence in South Korea and in Japan and in Germany and other places where we've fought conflicts. That does not mean that we would continue to see casualties, but I am totally sure that if we pull everybody out to the degree as it's presently planned, we will see the Iraq movie again. And that is the place, I would remind you, where the 9/11 attacks were inaugurated.
MCCAIN: Well, because of the American presence, they are able to defend themselves. 

But they have a robust American presence, training and other programs. Look, the other option, as far as I'm concerned, if we go to what they call an embassy-centric force, which is the same as any other country, you will see the Taliban. And now, ISIS is now coming in, and the Iranians are now providing arms to the Taliban. You will see chaos in Afghanistan. And frankly, I know of no military leader that doesn't believe that. - Read More at NPR

Sen. McCain Expects A Permanent U.S. Presence In Afghanistan