Having recently read W.G. Sebald’s “The History of Natural Destruction”:http://www.amazon.com/exec/obidos/ASIN/0375504842/junius-20 , I found myself referring to Michael Walzer’s “Just and Unjust Wars”:http://www.amazon.com/exec/obidos/ASIN/0465037054/junius-20 and his discussion of the “supreme emergency exception”. I was _slightly_ relieved by what I found there. Walzer doesn’t justify the bombings of Dresden (1945) or the firebombing of Hamburg (1943) but rather holds that Britain, with no other effective means of waging war against the appalling evil of Nazi Germany, and facing the threat of national annihilation, was only justified in the area bombing of German cities — in violation of the prohibition on attacking noncombatants — until early 1942. Nevertheless, what Walzer calls “the supreme emergency” exception is there, and the grounds for it are reasonably clear: necessity. The bombers were the only weapon available to leaders the continued independent existence of whose people was mortally jeopardized.
Surfing over to “a blog post by Oliver Kamm”:http://oliverkamm.typepad.com/blog/2005/01/livingstone_and.html , concerning our old friend Sheikh Al-Qaradawi, I find Walzer invoked as an authority against Qaradawi’s apologia for suicide bombing.