With the decline of American interests in the outcome of this region, there is no glue holding it together. And the countries in this region are invented ... The last guarantor of the region's borders was the United States, and the US has basically said "the hell with it." What you're really having is the collapse of nation-states because they're not nations. They're only states.

Success looks like you sitting here pretty confident that an armed brigade isn't going to come pouring in here and blow your head off. Which I don't think is your major concern. Therefore, the United States' foreign policy is successful.

The kind of president we need has little to do with ideology and more to do with a willingness to wield power to moral ends.

We cannot anticipate the moral circumstances under which we will live. And therefore [I refuse] to say that I will not live in a moral circumstance that requires violence.

Because the US has control of the sea. Because the US has built up its wealth. Because the US is the only country in the world really not to have a war fought on its territory since the time of the Civil War ... Therefore we can afford mistakes that would kill other countries. And therefore we can take risks that they can't ... the core answer to why the United States is like this is we didn't fight World War I and World War II and the Cold War here.

Every theory I've seen that contains an explanation of war fails. I think they fail for the same reason that explanations of sex fail. War derives from things so deep and so complex, I'm thoroughly baffled by it at the end of the day.

The warrior must continue to make decisions in the face of extreme circumstances. He cannot afford to get angry or frightened.