In a modern war, fought with modern weapons and on the modern scale, neither side can limit to the enemy the damage that it does. These wars damage the world. We know enough by now to know that you cannot damage a part of the world without damaging all of it. Modern war has not only made it impossible to kill combatants without killing noncombatants, it has made it impossible to damage your enemy without damaging yourself.
Citizenship Papers (2003) - The Failure of War