“While WW1 ended nearly a century ago, its scars can still be found across Northern France and Belgium. Zone Rouge (French for Red Zone) is perhaps the ultimate example of this.
At the end of the war in 1918, the French government isolated the areas in red above and forbade activities such as forestry, farming and even the building of houses from being performed inside them.
In total the non-contiguous areas took up 1,200 sq km (460 sq mi) (roughly the size of New York City)….”
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