On the plateau overlooking the quarry, a buried tank and minefields protected the immediate surroundings.
General Richter's headquarters
The 716th ID and D-Day
In the night of 5 to 6 June 1944, the general staff of the 716th ID was informed of unusual aerial activity and parachute drops to the east of the Orne and west of the Dives. In the small hours of the morning, the HQ staff received a stream of information from the CPs along the coast. This information had to be collected and analysed before reporting to the higher echelons. The long-awaited D-Day landings had finally taken place. This position was at the centre of the operations.
Richter reported the situation to General Marcks, commander of the 84th army corps headquartered in Saint-Lô. The following night, the general officers met to devise a strategy aimed at driving the Allied troops back to the sea, but the tank counter-attacks were repelled and the front line remained in the same place for several weeks. During the battle, the underground galleries were used as a CP and shelter for the troops. During the main offensives, they were turned into a makeshift hospital. The CP was finally abandoned on 23 June. Canadian soldiers took possession of the premises on 9 July.