Although combat operations unseated the Taliban and the Saddam Hussein regime, a poor understanding of the recent histories of the Afghan and Iraqi peoples undermined efforts to consolidate early battlefield gains into lasting security.

The key thing about force protection is... if you focus too much on force protection, and you disengage yourself from the community, you're putting yourself at greater risk because you need to interact with the community in a positive way to gain the intelligence you need.

You have to keep listening and thinking and being critical and self-critical. Remember General Nivelle, in the First World War, at Verdun? He said he had the solution and then destroyed the French Army until it mutinied.

There are two ways to fight the United States military: asymmetrically and stupid. Asymmetrically means you're going to try to avoid our strengths. In the 1991 Gulf War, it's like we called Saddam's army out into the schoolyard and beat up that army.

I find myself more at peace when I live in Europe.

After World War II it was decided that, in order to prevent the Germans and the French from having another war, it would be better to tie them together into one economic pact so they would invest in each other and have mutual stakes. Until now, that has worked to prevent warfare between the two.

With the end of the cold war, all the 'isms' of the 20th century - Fascism, Nazism, Communism and the evil of apartheid-ism - have failed. Except one. Only democracy has shown itself true the help of all mankind.

Can you look forward to the future of our country and imagine any state of things in which, with slavery still existing, we should be assured of permanent peace? I cannot.