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Old 05-06-2019, 06:01 PM
 
Location: Aurora Denveralis
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The Bletchley Park thread reminded me that I've been meaning to toss out this question for a while.

It's well known that the cracking of Enigma changed the course of the European war, and the cracking of the Purple code changed the Pacific war. It's my understanding that neither Axis power ever knew their top codes had been cracked (hence tragedies like Coventry), and that without that priceless intelligence, the war could have gone much differently, or at least much longer.

Were US/Allied codes ever cracked to any significant degree by the Germans or Japanese?
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Old 05-06-2019, 06:10 PM
 
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not the codes themselves however i believe a rudimentary scrambler phone encrypting FDR and Churchill phone talk WAS cracked because ATT sold the same scrambler technology to Germany it is claimed
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Old 05-07-2019, 04:22 AM
 
Location: London
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The Axis were quite successful at times. The Allies did know they were listening, and at times fed them a line. So it was worth them listening in at times to feed them garbage. By 1943 the Allies had about plugged all the gaps.

Even Wiki covers it:
https://en.wikipedia.org/wiki/German...n_World_War_II

Rommel most of the time knew the British position, mainly due to an incompetent US officer. An anglophobe named Bonner Fellers. The US gave him a medal as well. You couldn't make this up. The British suspected him, so sort of had him removed by exerting pressure on the US. He was sent to the Far East. The US Black Code, which Fellers was using, was cracked by the Germans and the codes stolen from the US embassy in Rome by the Italians.
https://warfarehistorynetwork.com/da...s-good-source/

https://en.wikipedia.org/wiki/Bonner_Fellers

Without Fellers the North African Campaign would have been over sooner. He indirectly assisted in many deaths.

Last edited by John-UK; 05-07-2019 at 05:05 AM..
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Old 05-07-2019, 11:53 AM
 
Location: Aurora Denveralis
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JUK, while I appreciate the answer, your inability to post anything here without bashing something US with something UK is beyond tiresome.
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Old 05-07-2019, 12:51 PM
 
Location: London
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The Germans were listening into the Royal Navy as well. The worst case I gave. I am sure you had never heard of it.
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Old 05-07-2019, 04:13 PM
 
Location: London
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Quietude, the British were quite dumb to allow Fenner Bonner, or any other rep of any country, to go anywhere in Egypt without their permission or being escorted. When the USA was in the war it was matter of the British putting heavy pressure on, or assisting the USA in their scrabbling, as they knew the info could have only come from Bonner.

Few know that Rommel knew exactly what the British were doing in North Africa. Hence him lasting out so long. All unnecessary. The Desert Fox? As they say in the USA, "my ass!"
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Old 05-07-2019, 04:14 PM
 
Location: Aurora Denveralis
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Tiresome, and now wholly ignorable.
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Old 05-08-2019, 02:51 AM
 
Location: London
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OK you do not like facts, fine by me. Stay in your own cloud.
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Old 05-08-2019, 03:51 AM
Status: "“If a thing loves, it is infinite.”" (set 5 days ago)
 
Location: Great Britain
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Quote:
Originally Posted by Quietude View Post
The Bletchley Park thread reminded me that I've been meaning to toss out this question for a while.

It's well known that the cracking of Enigma changed the course of the European war, and the cracking of the Purple code changed the Pacific war. It's my understanding that neither Axis power ever knew their top codes had been cracked (hence tragedies like Coventry), and that without that priceless intelligence, the war could have gone much differently, or at least much longer.

Were US/Allied codes ever cracked to any significant degree by the Germans or Japanese?
Not sure what Coventry has to do with codes.

Coventry was targeted by the Luftwaffe because it had a lot of armament factories around it, and was nothing to do with any interception or code breaking.

The Germans did deciphered some British codes, however Britain never stuick to plans and the Germans must have been fairly confused if they were listening in.

The Germands did not however have an equivalent or anything comparable to Bletchley Park, and there code braking efforts were limited as a result.

German code breaking in World War II - Wikipedia

Whilst Britain also fed the Nazi's a lot of false information, and in terns of D-Day the alllies even had fake tanks and trucks placed in areas to fool the Luftwaffe, such as those placed at Dover before D-Day.

Last edited by Brave New World; 05-08-2019 at 04:47 AM..
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Old 05-08-2019, 04:44 AM
 
Location: London
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Quote:
Originally Posted by Brave New World View Post
Whilst Britain also fed the Nazi's a lot of false information, and in terns of D-Day we even had fake tanks and trucks placed in areas to fool the Luftwaffe, such as those placed at Dover before D-Day.
That was Patton's greatest achievement. He was in charge of a non-existent army based in Kent. The German were fed stream of false reports about troops movements with Patton named commander of the First United States Army Group based in Kent. They convinced the Germans that this army was preparing for an invasion of the Pas de Calais with fake army radio communication - men were riding around Kent taking to each other. Fake tanks and truck were amassed. There was no army there.
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