I know as well. Your comment hinted that you had seen it; I too posted it for others. You mentioned that the information should not have been left out, so now it's not!
The zone rouge is a chain of non-contiguous areas throughout northeastern France that the French government isolated after the First World War. The "zone rouge" was defined just after the war as "Completely devastated. Damage to properties: 100%. Damage to Agriculture: 100%. Impossible to clean. Human life impossible".
The zone rouge is a chain of non-contiguous areas throughout northeastern France that the French government isolated after the First World War. The "zone rouge" was defined just after the war as "Completely devastated. Damage to properties: 100%. Damage to Agriculture: 100%. Impossible to clean. Human life impossible".
https://en.wikipedia.org/wiki/Zone_rouge
And the source of these images, with information:
http://imgur.com/gallery/CdxZM