Today is the anniversay of the ill-fated landings at Dieppe. Wikipedia devotes some space to the subject of German advance knowledge of the raid: Debate over German foreknowledge First-hand accounts and memoirs of many Canadian veterans who documented their experiences on the shores of Dieppe remark about the preparedness of the German defences as if they knew of the raid ahead of time. Commanding officer Lt. Colonel Labatt testified to having seen markers used for mortar practice, which appeared to have recently been placed, on the beach. Furthermore, upon touching down on the Dieppe shore, the landing ships were immediately shelled with the utmost precision as troops began exiting. The recent target practice and subsequent precision shelling is indicative of a well-prepared army. In another instance Major C. E. Page, while interrogating a German soldier, found out that 4 machine-gun battalions were brought in specifically in anticipation of a raid. However, the most compelling information supporting German foreknowledge resides with the numerous accounts of interrogated German prisoners, German captors, and French citizens who all conveyed to Canadians that the Germans had been preparing for the anticipated Allied landings for weeks. I have never seen any definitive historical discussion to prove or disprove that the Germans were 'expecting' the raid. In fact, that part tends to get short attention in most accounts. Has anyone seen a serious investigaton of the German foreknowledge?