Civilized Warfare?

I'm trying to do a bit of research for a congregant about the Jewish approach to Peacemaking. Along the way, I came across a great quote, by Rabbi J. David Bleich:

Renunciation of chemical and biological warfare, and humane treatment for prisoners of war… are certainly marks of civilized peoples, but on a more fundamental level such matters are little different from a convention requiring cannibals to eat with knives and forks. “Civilized warfare” is inherently a self-contradiction.

Nuff said!