(Pope Urbanus II calls for the First Crusade at the Council of Clermont, 1095)
The French radio station France Culture broadcasted an episode of Jean-Noël Jeanneney's Concordance des Temps around the just war doctrine in medieval canon law and theology. Since the roots of present-day jus ad bellum lie in christian doctrine, the ESILHIL-blog thought this of sufficient interest to our members and readers. Jeanneney, former president of the Bibliothèque nationale de France, professor at Sciences Po Paris and former Secretary of State under François Mitterrand, invited medievist André Vauchez, member of the Institut de France and the Académie des inscriptions et des belles lettres, to discuss the Church's role as an actor in international relations and as a lawmaker. An erudite conversation on the (im)possible morality of the use of force, proportionality, auctoritas, recta intentio, causa justa and sovereignty.