Board Thread:Timeline Discussions/@comment-27237633-20151117163735/@comment-3428312-20151125075237

The author of that article is unfortunately misinformed in that he believes the Germans did not know of the impending attacks against Normandy. OKW, from what evidence I've seen, had a grasp that Normandy likely was the target. As someone stated on another AH forum I visit:

"RG 457 SRDJ Nos 59973-5

Basically Hitler told Oshima the Allies were going to hit in Normandy or Brittany.

FMS B-675 written by Army Group B-Intelligence Estimate which states they believe Normandy and Brittany are the expected invasion areas.

TICOM I-143 in which General Alfred Jodl in which he explained they expected an attack at Cherbourg.

ETHINT-1 in which General Walter Warlimont explains the last minute orders to three Panzer Divisions to move on Normandy as intelligence indicated Allied Invasion was imminent due to the concentration of Allied forces in Southeast and Southwest Britain.

Capture P-47s did reconnaissance flights over the Southern British Coast and reported on April 25, 1944 that there were 234 LCT’s, 254 small and 170 auxiliary landing boats and 15 transports in Portsmouth, Southampton and Selsey Bill. These were judged capable of transporting 70.000 men. (Page 499, Hitler’s Spies, by David Kahn)

ADM 1/27186 details how the Germans cracked the Royal Navy's low level codes which allowed them to identify the movement of landing ships from the Med and the Scottish coast to the Southern and East coasts of the UK.

See the reports of Inspectorate 7/VI and NAAS 5, which detail how the German cracked the British Railways Codes. It told them of the Southern buildup.

TICOM I-109 covers how the Luftwaffe read Allied ATOs and ATCs codes and learned the C-47s with the paratroopers were inbound.

CSDIC/CMF/Y 40 details how the Germans broke the British SLIDEX codes used by ALOs. Through this Germany figured out the March Tables in Southern Britain.

E-Bericht Nr. 3/44 der NAASt 5 details how the Germans cracked the M-209, and from it learned exactly what US Army units were present and where. The USAAF used the M-209 for operational and administrative networks allowing the Germans to know the shit storm was about to start."