I cannot understand how something as ubiquitous as war can simply be dismissed as pathological. It is not clear to me that it is an unspeakable evil. If it is, I need proof of it.

Italy is the fourth-largest economy in Europe and the eighth-largest economy in the world, and its banking system is collapsing. And Germany is desperate. It must maintain its standard of living. It can only do that with exports and Deutsche Bank is very exposed to Italian debt. But so is the rest of Europe.

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

In a way, we can have a much easier discussion about the future of technology than we can about why a young man kills another man in a war.

Recent presidents have gone off on ad hoc adventures. They have set unattainable goal because they have framed the issue incorrectly, as they believed their own rhetoric.

Wars are times of intense technological transformation, because societies invest - sometimes with extensive borrowing - when and where matters of life and death are at stake.

What is American strategy first of all? So American strategy is to command the seas, right? The foundation of our power is sea control. Nobody can invade us, but we can invade them.