General McChrystal wanted to be on the cover of Rolling Stone.

Despite failing to get bin Laden, the U.S. government and media portrayed the early Afghanistan war as a great victory.

It was interesting watching the Afghanistan war review deliberations, this three-month process where Barack Obama did the most thorough foreign policy review ever by a modern American president. Compare that to Libya. For a month he said we weren't going to do anything, then suddenly changed his mind and did it on the fly. My view is that it's not how long or quick you take to make a decision, it's whether you make the right one.

A state department official once told me this about the role of the president. He said: "We wage war for realist reasons, we justify wars for idealist reasons, and it's the president's job to balance the two." I agree.

I think when war becomes your life, I think its very difficult to have the proper perspective to be able to create a fully balanced policy.

The humanitarian argument is so selective I find it difficult to swallow. It's not even so much about the choice as to where we should get involved and where we shouldn't. The minute you start arming people in these conflict zones, like Iraq and Afghanistan, things don't go as expected.

Clearly the American military has been a force for good for the United States. There's a reason we have a standing military. But there's something to be said for having a much smaller military because then we wouldn't be tempted to get involved in things we shouldn't be getting involved in.