on the battle field, and starvation, occupation, destruction, and in some cases even revolution, on the home front. Based on a wide geographical and chronological scope ¿ from the late nineteenth century to the interwar years ¿ this collection of essays explores the policing of European belligerent countries, alongside their empires, and neutral countries. The book¿s approach crosses traditional boundaries between neutral and belligerent nations, centres and peripheries, and frontline and rear areas. It focuses on the involvement and wartime transformations of these law-enforcement forces, thus highlighting underlying changes in police organisation, identity and practices across this period.