A military bunker located near Saint-Nazaire, France, situated along the Atlantic coast. Saint-Nazaire was a strategically important port city during World War II, occupied by German forces who constructed extensive fortifications as part of the Atlantic Wall defensive system. The area features several concrete bunkers and coastal defense structures built to protect the submarine base and harbor facilities.
These fortifications were part of Nazi Germany's extensive military engineering projects along the French coastline during the occupation period.