If in order to kill the enemy you have to kill an innocent, don't take the shot. Don't create more enemies than you take out by some immoral act.

Treachery has existed as long as there's been warfare, and there's always been a few people that you couldn't trust.

The first time you blow someone away is not an insignificant event.

I would happily storm hell in the company of these troops ... how strongly they have demonstrated to the world that free men and women can fight like the dickens.

The most important six inches on the battlefield is between your ears.

The destruction that we have wreaked in the various theaters in which we've been engaged is really quite astonishing. But again, lethality, destruction, killing doesn't seem to achieve our objectives. So, my own sense is that a lack of lethality does not define the core problem.

2017 is going to be another tough year for the valiant Afghan Security Forces and the international troops who have stood and will continue to stand shoulder to shoulder with Afghanistan against terrorism.