By: Parabellum. Read more... Following the surrender of France to German forces later in June 1940, the port immediately became a base of operations for the Kriegsmarine (German Navy) and was as such the target of Allied operations. A heavily fortified U-boat submarine base was built by Organisation Todt shortly after occupation, with its 9 m (30-ft) thick concrete ceiling was capable of withstanding almost any bomb in use at the time.
Saint-Nazaire U-Boat Pens
🇫🇷 France·Added by @bunkeratlas
Military Bunker
Unknown
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Keywords
Saint-Nazaire U-Boat PensMilitary BunkerUnknownBunkerAtlashistorical bunkermilitary heritage