Something that could intrest everyone who wants to know more about the fate of the POW's in France.
Last week-end I visited la Picardie, the region between Northern France and Paris.
In the Picardie, you have the Canal de Saint-Quentin, which was, staring in 1810, the only route for river boats to reach the Oise-river, and thus also the Seine, from the Scheldt river in Belgium.
Works began in 1738 till 1774 but the canal was only finished in 1810 with the building of the Grande Souterrain, a tunnel from 6 km long for those boats, crossing the hills were a lot of atrocious battles of WWI was fought out (not so far from the Chemin des Dames. The building of this tunnel lasted for 8 years and the men who build it were merely POW's from Napoléon battles from 1805 onwards (Austrians and Russians after Austerlitz and Prussians after Jena).
Eventually more of this subject will interest me furtheron.
Some links :