Edward Luttwak

"An unpleasant truth often overlooked is that although war is a great evil, it does have a great virtue: it can resolve political conflicts and lead to peace. This can happen when all belligerents become exhausted or when one wins decisively. Either way the key is that the fighting must continue until a resolution is reached. War brings peace only after passing a culminating phase of violence. Hopes of military success must fade for accommodation to become more attractive than further combat."

"Yes, you can convert [Afghanistan] into Sweden, but youll need four hundred years, and you have to kill three quarters of the males in Afghanistan probably in three generations, one after the other, to be able to do it."

"Perfectly ordinary regular armed forces, with no counterinsurgency doctrine or training whatever, have in the past regularly defeated insurgents, by using a number of well-proven methods. It is enough to consider these methods to see why the armed forces of the United States or of any other democratic country cannot possibly use them."