The Atlantic Wall was

The Atlantic Wall was: The Atlantic Wall was an extensive system of coastal defense and fortifications built by Nazi Germany along the coast of continental Europe as a defense against an anticipated Allied invasion of Nazi-occupied during II. World War. The manning and operation of the Atlantic Wall was administratively overseen by the German Army, with some support from Luftwaffe ground forces. The German Navy maintained a separate coastal defense network, organized into a number of sea defense zones.