 Adolf Hitler was furious that the British had been able to sail a flotilla of ships up the Loire <unk> . His immediate reaction was to dismiss <unk> Carl <unk> , chief @-@ of @-@ staff to the Commander in Chief West . The raid <unk> German attention on the Atlantic Wall , and special attention was given to ports to prevent any repeat of the raid . By June 1942 the Germans began using concrete to <unk> gun emplacements and bunkers in quantities previously only used in U @-@ boat pens . Hitler laid out new plans in a meeting with <unk> Minister Albert <unk> in August 1942 , calling for the construction of 15 @,@ 000 bunkers by May 1943 to defend the Atlantic coast from Norway to Spain . 
