Donald Trump has no credibility to criticize me or my record or anything that I have done. If he had spent a minute in the deserts of Afghanistan or in the deserts of Iraq, I might listen to what he has to say.

Afghanistan is going to be here a long time, and what's critical is that Afghanistan's relationship with its neighbors are, to the maximum extent they can be, constructive and operationally useful.

I can't spend a lot of time worrying about the numbers at home. I've got to focus on the mission.

It's not possible to put into words the sense of loss and grief that comes to a family that loses one of their children.

Planning is really the hallmark of any large military formation, and it's typically a weakness in new formations and new armies.

There is a direct line relationship between what happened in Afghanistan in the work up to 11 September 2001 and what we're doing in Afghanistan today.

There are problems in the world today.