Hitler's U-Boat Lair: The Secret Nazi Underwater Superstructures | Timeline

Secrets of Nazi U-Boat Bases offers a new look at the Battle of the Atlantic; the most important military campaign of World War II. While occupying France, Hitler built along the French Atlantic Coast what he thought was the secret to securing victory-five huge underwater bases that protected and rearmed his returning U-Boat fleet after attacking British supply ships.
Now, equipped with previously unknown German national archive documents, historians Luc and Marc Braueur reveal the secrets of these super-structures for the very first time in 75 years. Meanwhile, they uncover how the Allies utilized spying and decryption to organize radically different anti-submarine counter-measures which would defeat Hitler’s navy and eventually win the war.
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[@deepbludude4697]

Interesting Doc, Back in the 70s I was always sent to Kansas to work on a farm in summers. My uncle who had been in the Navy during WWII told me about these underwater bunkers or sub pens as he called them. He told me of a location in the S. Atlantic at Ascension Island that also had a secret sub pen. In the early 80s I started work on the Eastern Test Range as a diver ultimately working all up n down the range including Ascension, never did find a sub pen but found lots of other WWII items.

[@grimmertwin2148]

Allies knew where it was. The concrete was so thick it was impenetrable

[@jayfelsberg1931]

Otto Kretschmer was a keen bridge player, and allowed the British officers on the destroyer that captured him to finally have a fourth. The Brits said it was the best bridge they had the entire war.

[@daniellebcooper7160]

''85% of the men who served under Donitz, died''.....a very sobering fact. R.I.P.

[@Slaktrax]

A very good and informative documentary, thank you. 🙂

[@JB-rt4mx]

Please make the Subtitles ( Smaller & Faster) 🤓

[@BatGS]

Greetings: Very well presented except 4 the narrator mistake of the "German commandos" assaulting the sub base. Thx 4 the share.

[@chazzz960]

This is important documentry. And well done.

[@Irish_For_Life1842]

Please make the Subtitles bigger. I spend so much time trying to see the small Subtitles that I can't see what is happening in the video of these historic places.

[@chrislong3938]

10:47

[@brianmaitai7685]

Never before seen images of virtual U-boat training and stunning wartime action. .I am beside myself with excitement and almost wet my pants.

[@magamagaaa]

RIP to Alan Turing. You were betrayed by the English government.

[@DSToNe19and83]

“When the German commandos land, they come under fire from the Germans positioned on the roof”

[@jorgebordon5131]

There is a mistake in believing that all communications were made by Enigma, after 1943, the Germans only used Enigma for tactical messages, the strategic messages, which were the really important ones, were sent by Telex Siemens, which could never be intercepted by the allies. These telexes turned out to be so difficult to intercept that they were later used by NATO until the 1980s. Of the entire Telex family, the most important were 5 units commissioned by Martin Bormann in February 1945, this group could only communicate with each other. One was in Berlin, another in the Berghof, another in Flensburg....the remaining two were possibly in Argentina and in a U boot. From the telex that was in the Berghof, the last message went out to Argentina, where the two main agents of German intelligence were ordered to change the place of reception of the group of U boots that would go to that country, they should no longer receive them in GK but in GS (the German Navy grid)....The message is still in the German archives.

[@oleriis-vestergaard6844]

In Norway the uboat were located at HORTEN and TRONDHEIM

[@EpochEnigmaChannel]

Fascinating personal anecdotes! It's amazing how wartime secrets still intrigue us today. Thanks for sharing your experiences!

[@robnordal1906]

Can you guys please print your subtitles larger so I don't need an electron microscope to read them. Thanks

[@Chained2Alice]

'The only thing that ever really frightened me during the war was the U-boat peril. ' Winston Churchill

[@TravisBrady-wn8fr]

Really enjoying my WW2 studies. There is so much to take in it will take me years

[@davecurda2350]

This would have been so much better if the French was dubbed into English instead of having to try and read it before it disappeared.