In mid-1943, the Germans began to build logistical support in northern France for their forthcoming V1 flying bombs attacks against England. The supply depots were the last storage and preparation sites before transport to the firing bases and as a consequence, were often built in small villages. Bunkers were built adjacent to existing buildings, using pre-fabricated blocks, thus the entire village became part of the depot, thereby camouflaging it from Allied bombers.
In Normandy, on the Cotentin peninsula, two supply depots were built at Valognes and Bricquebec.
The Allied landings in Normandy in June 1944 cut the supply routes from Germany and so no V1s reached the depots.
Today, the old storehouses are in the towns and are being used by the local inhabitants.