A military bunker located near Saint-Nazaire, France, in the Loire-Atlantique department. Saint-Nazaire was a strategically important port city during World War II, heavily fortified by German forces as part of the Atlantic Wall defenses. The area saw significant military construction, including submarine pens and coastal fortifications, due to its naval facilities and industrial importance.
This particular bunker, marked as 'zerstört' (destroyed), was likely part of the extensive defensive network built during the German occupation of France from 1940 to 1944.