Actes of the Franco-Swiss Colloquium held in Lucelle on 22 October 2011, this volume shows us the events that took place in a short period of time (four years, 1914-1918, but which years!) and in a limited space, which was then divided between three countries: Switzerland (with the Jura bernois), Germany (with Haute Alsace) and finally France (with the Territoire de Belfort, then still known as High Rhine). The subject is contextualised by int...