There's a financial cost, but the only costs that are ever real are the costs of our soldiers.
We wanted this war and now we've got it, and I'm not sure that we know what to do with it.
The wars of the future will be fought by computer technicians and by lawyers and high-altitude specialists, and that may mean war will be increasingly abstract, hard to think about and hard to control.
It's good for people to believe in causes larger than themselves.
There's a civic nationalism in Britain and dozens of other countries.
(This picture is licensed under the Creative Commons Attribution 2.0 Generic license. - Greg Kolz)