A military structure located near Forges-les-Eaux in the Normandy region of France, at the given coordinates. The site is in a rural area with historical significance from World War II, though the specific purpose and history of this particular structure are not confirmed by the provided search results. The name 'Wasser' may indicate a German designation from the occupation period, but this cannot be verified from the available information.
The search results provided discuss France's broader nuclear weapons policy and history, not this specific location.