Following the invasion of the U.S.S.R. and the entry into the war of the U.S.A. on the British side, German strategy in the West changed from the offensive to the defensive. Hitler agreed to the construction of a fortified line along the western coastline, capable of repulsing any Allied attempt of invasion. Construction work of the Atlantic Wall began in early 1942.

Two museums can be found in Saint-Côme-du-Mont: the D-Day Experience exhibits the American side and Dead Man’s Corner Museum, the German perspective. The museum tells the story of the liberators of Europe through an interactive route with the possibility to take part in virtual experiences and simulations.