During the German occupation of France, the bunker was meant to be the main German U-boat base in the Mediterranean, but Allied forces bombed the city in May 1944 and took it back in August that year.

And a decommissioned World War II submarine base ... built in 1941 after France surrendered to Germany and was one of five Atlantic Coast bases used to launch German U-boats.

The German U-boat U-853 was sunk off the coast of Point Judith, Rhode Island, in May 1945, marking the last U.S. merchant ...

During the German occupation of France, the bunker was meant to be the main German U-boat base in the Mediterranean, but Allied forces bombed the city in May 1944 and took it back in August that year.

During the German occupation of France, the bunker was meant to be the main German U-boat base in the Mediterranean, but Allied forces bombed the city in May 1944 and took it back in August that year.