Ancient: Ancient Rome and historical sociology; The Roman republic; The imperial order; From Pax romana to the order of Feud -- Medieval: Medieval history and historical sociology; Encastellation; Three orders of violence; Medieval formations : war-state and law-state -- Late medieval: The Hundred Years' War; A military domain -- Early modern: Two sources of military modernity : Burgundy and the Swiss; Republic and monarchy : two texts on government, discipline, and the subject of violence; The early modern army and historical sociology; Military reformations; Military and civil society; Reflections.