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What if Wilhelm Canaris was caught earlier passing information to the allies? In OTL he was executed in 1945, but what if he was caught early 1940? Let's say that someone in his office happens to catch on and passes that knowledge to the SS. What effect does this have on the war? Who takes over the Abwehr? I think that Heydrich was a possiblity based off of the wikipedia entry on Canaris:
http://en.wikipedia.org/wiki/Wilhelm_Canaris

This is clearly a massive hinderence to the allied war effort as this man was a major link to the highest intelligence in germany. Churchill even mentioned him in an address to parliment in 1945 as one of the best intelligence sources of the allies. I am not exactly sure what the effects would be on the war, as it is not listed what intelligence was passed on, but it is possible that the 1944 assassination attempt would never have gone off without Abwehr backing. Also, if the SS/SD and Heydrich take over, then it is likely that he would never be assassinated, as the catalyst for it was to perserve Canaris's position was under investigation by Heydrich. With this ruthless individual at the helm of German intelligence services, it is likely that the numerous successes of the allies in the intelligence department would be comprimised and the success the germans experienced against the dutch resistance might have been repeated on a larger, more painful scale.

Overall, the effects on the war would not necessarily be felt until a little later. France would still fall and it is very likely that the BOB would still fail. However, once Heydrich (who I will say takes over for the sake of argument) cements his power in the Abwehr and the other services, it is likely he will have enough power to lever out Himmler, who was legendary for his incompetence and bizarre beliefs. Nazi Germany just became a much scarier thing.
I wonder what success may be had against Rote Kappelle, the Soviet intelligence network in Germany. But as far as North Africa goes, it is very likely that many more convoys might have gotten through which, despite the logistics situation, will make some difference in the outcome. Perhaps the war in Africa continues for longer, but a victory is unlikely. Enigma might become much less useful without Canaris and may be discovered by the SS controlled Abwehr. Also it is increasingly likely that the Germans might be successful in infiltrating agents into England and the US.

Overall, Russia might not change too much, but Western allied invasions of Europe might meet much more resistance and suffer accordingly. Thoughts?
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