Trêve de Dieu
The Peace and Truce of God () was a movement in the Middle Ages led by the Catholic Church and the first mass peace movement in history. The goal of both the "Pax Dei" and the "Treuga Dei" was to limit the violence of feuding endemic to the western half of the former Carolingian Empire – following its collapse in the middle of the 9th century – using the threat of spiritual sanctions. The eastern half of the former Carolingian Empire did not experience the same collapse of central authority, and neither did England.