The Vietnam War required us to emphasize the national interest rather than abstract principles. What President Nixon and I tried to do was unnatural. And that is why we didnt make it. – Henry A. Kissinger
It is our duty still to endeavor to avoid war but if it shall actually take place, no matter by whom brought on, we must defend ourselves. If our house be on fire, without inquiring whether it was fired from within or without, we must try to extinguish it. – Thomas Jefferson