The following commentaries are responses to the rough drafts of six lectures—the Hourani Lectures—that I delivered at the University of Buffalo in November of 2006. This draft manuscript is being extensively revised and expanded for publication by Oxford University Press as a book provisionally called The Morality and Law of War. Even though in January 2007 the book was still both unpolished and incomplete, David Enoch at that time generously organized a workshop at the Law School of the Hebrew University of Jerusalem to discuss its ideas and arguments. George Fletcher chaired the meeting and Re'em Segev, Yuval Shany, and Noam Zohar all presented superb commentaries. The following papers have all grown out of that memorable occasion.