The Blue Line – the Vosges frontier 1871 to 1914

The frontier separating Alsace from France before the Great War


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Map

By way of orientation, here’s an annotated “bird’s eye” map showing the Ballon d’Alsace. These cards were very popular among soldiers writing home from the Front. Most of mine are German and the place names used are those which replaced the French names during the period of occupation.

Picture map Belfort labelled