Dd. 21 Submarine
The Dd. 21 Submarine was a German submarine that was used during World War II. It was a large and powerful submarine that was armed with torpedoes and guns. The Dd. 21 Submarine was used for attacking Allied shipping and for reconnaissance missions.
Aquitania, German U-Boat Campaign
The waters off the coast of Aquitania in France were a target for German U-boats during World War II. Allied shipping lanes were disrupted by submarine attacks, leading to significant losses of merchant vessels and supplies.