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WORLD WAR II ENIGMA CODES ... British WW2 Tales

Britain Cracked Enigma — American Movies Say They Did It



Original article: https://www.youtube.com/watch?v=EjEt5JxBx60
Britain Cracked Enigma — American Movies Say They Did It

British WW2 Tales

Dec 28, 2025

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#wwii #enigma #bletchleypark

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Bletchley Park. England. 1940.
  • Thousands of British mathematicians, linguists, and codebreakers worked in secret.
  • Their mission: crack the 'unbreakable' German Enigma machine.
  • Alan Turing built a machine to decode Nazi messages.
  • Gordon Welchman revolutionized the process.
  • British intelligence read German communications in real time.
  • Historians estimate breaking Enigma shortened the war by two years.
  • Millions of lives saved.
Then Hollywood made a movie about it.
  • U-571. Year 2000.
  • American sailors capture an Enigma machine from a German submarine.
  • American heroes crack the code.
  • American ingenuity wins the war.
One problem.
  • None of it happened.
  • The British captured Enigma machines.
  • The British broke the code.
  • The British ran the entire operation.
  • But the movie was a blockbuster.
  • And millions of people now believe Americans cracked Enigma.
  • The British work was classified until the 1970s.
  • By the time the truth came out, the fake story had already set in concrete.
  • This is how Hollywood rewrote one of Britain's greatest achievements — and got away with it.
#wwii #enigma #bletchleypark #alanturing #U571 #hollywood #britishhistory #ww2history #forgottenhistory #codebreakers

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Peter Burgess COMMENTARY

I was born in 1940 in the early days of WWII. We lived near London in a place called Surbiton, close enough for attacks on London to spill over into out neighborhood.

After the war, I learned a lot about various aspects of hostilities from a British perspective, and many decades later I still remember much of what I learned during that period of my life.

I have lived in the USA since the late 1960s ... for more than 60 years ... and I have been annoyed and disgusted at the limited level of knowledge most Americans have about WWII and world affairs since that time.

I find this little piece about the Enigma codes and Bletchley Park to be fascinating ... not to mention the creation of a fake Hollywood version of this history!

Peter Burgess
Transcript
  • 0:00
  • May 1943,
  • North Atlantic. Ubot headquarters in
  • Laurent received a coded message from
  • U110
  • under attack. Position compromised. The
  • signal ended abruptly. Capatan Lloyd Nut
  • Fritz Julius LMP had been transmitting
  • routine weather data when British
  • destroyers appeared from a direction
  • they shouldn't have known to search. By
  • the time U 1110 crash dived, depth
  • charges were already falling with
  • uncanny accuracy. German Naval Command
  • reviewed the incident with growing
  • unease. This wasn't the first time.
  • British convoy escorts were appearing
  • exactly where Yubot gathered. Rav
  • Coastal Command bombers were finding
  • submarines in vast stretches of ocean
  • where chance encounters should be
  • impossible. Admiral Donuts ordered an
  • investigation. The Enigma encryption
  • system was tested, retested, analyzed by
  • Germany's finest cryptographers. Their
  • conclusion mathematically unbreakable.
  • The machine generated 159 million

  • 1:02
  • million million possible settings. Even
  • if the British captured an Enigma
  • machine, they couldn't read German
  • messages without knowing daily key
  • settings. The system was secure. It had
  • to be. 70 years later, a Hollywood film
  • would show American sailors capturing an
  • Enigma machine from U 571, cracking Nazi
  • codes and winning the Battle of the
  • Atlantic. The Americans watching that
  • film in cinemas didn't know they were
  • watching a lie. The Germans transmitting
  • messages in 1943 didn't know their
  • unbreakable cipher had been broken by
  • British mathematicians in a country
  • estate in Buckinghamshire 3 years
  • earlier. To German cryptographers in
  • 1939, Enigma represented the pinnacle of
  • secure military communications. The
  • machine itself was elegant. A series of
  • rotating wheels called rotors, each
  • wired internally to scramble letters
  • through 26 possible positions. Three
  • rotors created 17,576

  • 2:00
  • possible combinations. Add a plug board
  • that swapped letter pairs before
  • encryption, and the permutations became
  • astronomical. A message typed into
  • Enigma emerged as seemingly random
  • gibberish. Only another Enigma machine
  • with identical rotor positions and
  • plugboard settings could decrypt it. The
  • German military changed these settings
  • daily using code books distributed to
  • units across Europe, North Africa, and
  • the Atlantic. Without the code book, an
  • intercepted message was worthless noise.
  • German signals intelligence had analyzed
  • Enigma exhaustively before adopting it.
  • Their conclusion documented in a 1937
  • Vermacht technical assessment. Breaking
  • Enigma encryption through crypt analysis
  • would require computational resources
  • beyond any nation's capability. The
  • system is absolutely secure for military
  • communications.
  • Then the logic was sound. British
  • codereers at the government code and
  • cipher school had been intercepting
  • German messages since 1939.

  • 3:00
  • They possessed captured Enigma machines.
  • They understood the mechanical
  • principles. None of it mattered without
  • the daily settings. A Luftvafa signals
  • officer wrote in his diary in November
  • 1939.
  • Our communications are impenetrable. The
  • British may intercept our transmissions,
  • but they hear only meaningless letters.
  • We transmit in absolute security. That
  • assessment was shared across German
  • command. Craig's marine hubot
  • coordinated wolfpack attacks by radio,
  • confident that British listeners
  • couldn't decipher their positions or
  • tactics. Vermached units in North Africa
  • requested supplies and reinforcements by
  • wireless without concern that the enemy
  • might intercept. The Luftwafa broadcast
  • bombing raid coordinates and enigma
  • encrypted messages. Germany waged war
  • assuming strategic communication
  • security. That assumption was about to
  • collapse. Bletchley Park, a Victorian
  • mansion 50 mi north of London,
  • requisitioned in 1938 as the wartime

  • 4:02
  • home of British codereing operations. In
  • September 1939, as Germany invaded
  • Poland, a small team of mathematicians,
  • linguists, and chess champions assembled
  • in wooden huts erected on the mansion's
  • lawn. Their mission, break Enigma. The
  • task seemed impossible. The German
  • military changed Enigma settings at
  • midnight every day. Even with captured
  • machines, codereers had only 24 hours to
  • determine rotor positions, plugboard
  • settings, and ring positions before the
  • settings changed, and the entire process
  • began again. Trying every possible
  • combination would take longer than the
  • universe had existed. A young Cambridge
  • mathematician named Alan Turing proposed
  • something different. Don't try every
  • combination.
  • build a machine that could test logical
  • contradictions in encrypted messages
  • until it found a settings that made
  • sense. The concept was brilliant. The
  • execution required engineering that
  • didn't exist. By March 1940, Turring and

  • 5:01
  • colleague Gordon Welchman had designed
  • the bomb, an electromechanical computer
  • that could test enigma settings at
  • speeds impossible for human crypt
  • analysis. The first bomb installed in
  • Hut 1 at Bletchley Park stood 8 feet
  • tall, weighed a ton, and contained 108
  • rotating drums simulating Enigma rotors.
  • It clattered through settings whilst
  • testing for logical consistencies in
  • encrypted text. When it found a possible
  • match, it stopped. Operators then tested
  • that setting manually. The process
  • worked. On the 22nd of May 1940, the
  • bomb broke its first German air force
  • key, Bletchley Park could read Luftwafa
  • communications. The intelligence was
  • cenamed ultra higher than top secret.
  • Churchill received daily summaries. Raph
  • Fighter Command gained advanced warning
  • of German raids, but the Marines naval
  • enigma remained unbroken. Ubot used a
  • more sophisticated version with four
  • rotors instead of three, multiplying the

  • 6:01
  • possible combinations 26-fold. The
  • breakthrough came from an unexpected
  • source. In February 1940, Polish
  • cryptographers who had been working on
  • Enigma since 1932 escaped to France,
  • then Britain after France fell. Marian
  • Rajookski, Jersey Retski, and Henrik
  • Ziggielski brought something invaluable.
  • Years of theoretical work on Enigma's
  • mathematical vulnerabilities.
  • They had built the first enigma breaking
  • machines in Warsaw before the war. Their
  • work provided the foundation for
  • Bletchley's bombs. A British
  • cryptonalist later wrote, 'The Poles
  • gave us the theory. Turring gave us the
  • machine. Together, they gave us
  • Germany's secrets.' By late 1941,
  • Bletchley Park was breaking German Army
  • and Air Force Enigma keys regularly.
  • Naval Enigma remained elusive until
  • captured Yubot code books finally
  • provided the missing pieces. The
  • intelligence flowing from Bletchley
  • transformed from trickle to flood. But

  • 7:02
  • Germany never knew. The scale of
  • Bletchley Park's operation would have
  • shocked German intelligence. By 1943,
  • over 9,000 personnel worked in
  • roundthe-clock shifts. Threearters were
  • women. Rens operating bombs, linguists
  • translating decrypted messages, analysts
  • identifying tactical patterns. The site
  • eventually housed 210 bombs running
  • continuously. They broke on average
  • 3,000 German messages per day, every
  • yubot position in the Atlantic, every
  • vermached supply convoy in North Africa,
  • every Luftvafa raid being planned
  • against Britain. The intelligence was so
  • comprehensive that British commanders
  • faced a dangerous problem. Using it too
  • obviously would alert Germany that
  • Enigma was compromised. A rigid protocol
  • developed. Ultra intelligence could only
  • be acted upon if a plausible alternative
  • explanation existed. If Bletchley
  • decrypted Yubot positions, RAF Coastal
  • Command had to spot the submarine

  • 8:00
  • visually before attacking. If Ultra
  • revealed a convoy route, Royal Navy
  • ships had to conduct visible
  • reconnaissance first. The deception
  • worked because Germany couldn't conceive
  • their cipher was broken. In October
  • 1942, British destroyers HMS Petard and
  • HMS Hero Depth charged 59 in the
  • Mediterranean. As the submarine
  • surfaced, two British sailors,
  • Lieutenant Anthony Fasen and Abel Seaman
  • Colin Graasier, boarded the sinking
  • Ubot. They seized Enigma code books and
  • rotors whilst water poured into the
  • control room. Both men drowned
  • retrieving those documents. The code
  • books reached Bletchley Park 3 days
  • later. They contained the keys to Marine
  • Enigma settings for weeks ahead. The
  • intelligence breakthrough came just as
  • the Battle of the Atlantic reached its
  • crisis. Yubot were sinking merchant
  • ships faster than Britain could replace
  • them. With naval Enigma broken, British
  • convoy routing could avoid Wolfpack
  • concentrations. Sinkings dropped
  • dramatically. AR's marine analysis from

  • 9:01
  • March 1943 noted with frustration,
  • British convoys consistently avoid our
  • patrol lines. We position Wolfpacks
  • across their projected routes. The
  • convoys appear 200 m away. Either
  • British intelligence has achieved the
  • impossible or we face unprecedented
  • luck. It wasn't luck. It was
  • mathematics, engineering, and 9,000
  • people keeping the war's most important
  • secret. The impact of ultra intelligence
  • on allied victory remains debated, but
  • historians generally agree it shortened
  • the war by at least two years. At
  • Elamagne in October 1942, Montgomery
  • knew Raml supply situation, fuel
  • reserves, and planned counterattacks
  • before they happened. All from decrypted
  • enigma messages. In the Atlantic, yubot
  • losses escalated as convoys were
  • rerouted around German positions. During
  • the D-Day landings, Allied commanders
  • read German defensive plans and
  • reinforcement schedules whilst Hitler's
  • general still believed Enigma was

  • 10:01
  • secure. A German signals officer
  • captured in Normandy told interrogators,
  • 'We assumed our communications were
  • safe. You're telling me you read
  • everything for years? Impossible.' The
  • British showed him decrypted copies of
  • his own messages.
  • He stopped talking. Here's where the
  • story gets stolen. The 2000 film U571
  • depicts American sailors capturing an
  • Enigma machine from a German submarine,
  • breaking Nazi codes, and turning the
  • tide of the Atlantic War. The film was
  • financially successful. It won an Oscar.
  • It was also historically fraudulent.
  • U 571 was sunk by Australian aircraft in
  • 1944 after Enigma was already broken. No
  • American forces captured naval Enigma
  • machines during the war. The actual
  • Yubot captures that provided Enigma
  • materials were British operations.
  • U 1110 captured by HMS Bulldog in May

  • 11:02
  • 1941.
  • U 559's code book seized by Royal Navy
  • sailors who died retrieving them. U 505
  • captured by USS Guadal Canal in 1944
  • after the codes were already broken. The
  • film's producers defended the historical
  • fabrication as dramatic license. British
  • veterans who had worked at Bletchley
  • Park called it something else, theft of
  • their history. The U 571 controversy
  • reached the British Parliament. Members
  • demanded an apology from the filmmakers.
  • The film's director, Jonathan Mosto,
  • eventually added a disclaimer to the
  • film's credits, acknowledging that
  • British forces actually captured Enigma
  • materials. The disclaimer appeared for 3
  • seconds. Most cinema audiences missed
  • it. A generation of Americans left
  • theaters believing their countrymen had
  • broken Enigma. A British Bletchley Park
  • veteran, now in his 80s, told a
  • journalist, 'We worked in absolute

  • 12:01
  • secrecy for 50 years, couldn't tell our
  • families what we'd done.' When The
  • Secret was finally declassified in the
  • 1970s, we thought people would know.
  • Then Hollywood rewrites history, and
  • suddenly Americans think they did our
  • work. The pattern repeated. The 2014
  • film The Imitation Game focused on Alan
  • Touring's brilliant contributions, but
  • largely ignored the Polish
  • cryptographers whose pre-war work made
  • British success possible. Marian Rajeski
  • developed the theoretical mathematics
  • for breaking Enigma in 1932,
  • 7 years before Bletchley Park existed.
  • The Poles built the first Enigma
  • breaking machines called Bomba
  • Cryptologix cryptologic bombs. When
  • Poland fell in 1939, Polish
  • cryptographers brought their research to
  • France, then Britain. They handed
  • British codereakers years of advanced
  • mathematical work. The imitation game
  • reduced Polish contributions to a brief
  • mention. One Polish veteran interviewed

  • 13:00
  • before his death said simply, 'We gave
  • them the key. They built the house. Then
  • they forgot we existed.' Germany never
  • discovered Enigma was broken during the
  • war. After defeat in 1945, captured
  • cryptographers were interrogated about
  • their cipher security. They remained
  • convinced Enigma was unbreakable. When
  • shown decrypted German messages, some
  • refused to believe they were genuine.
  • Agreeds marine signals officer shown his
  • own decoded transmissions from 1943
  • insisted they must be fabrications. No
  • one could break Enigma. The mathematics
  • made it impossible. The psychological
  • denial was understandable. Accepting
  • that Enigma had been compromised meant
  • accepting that every operation, every
  • attack, every defensive position had
  • been potentially compromised. That
  • German soldiers had died because their
  • secure communications were being read by
  • the enemy. That the vaunted German
  • technical superiority and cryptography
  • was an illusion. It was easier to deny

  • 14:01
  • than accept. Bletchley Park fell into
  • neglect after the war. The site was
  • nearly demolished in 1991 for housing
  • development. Veterans who had worked
  • there in secrecy for decades lobbied to
  • preserve it. The mansion and several
  • huts became a museum in 1993. Visitors
  • can see reconstructed bombs, walk
  • through the huts where crypt analysts
  • worked, and learn about operations that
  • remained classified for 50 years after
  • the war ended. American tourists visit.
  • Some express surprise learning that
  • British codereakers, not American
  • sailors from Hollywood films, broke
  • Enigma. A museum guide reports that
  • roughly one in four American visitors
  • asks some version of, 'But didn't we
  • capture the Enigma machine from a Yubot?
  • Sometimes they believe him.' The truth
  • about Enigma is this. Polish
  • mathematicians laid the theoretical
  • groundwork before the war. British
  • mathematicians, engineers, and thousands
  • of support staff built the machines and
  • organization to break German codes at

  • 15:00
  • industrial scale. American forces
  • contributed materially to Allied victory
  • through production, manpower, and
  • eventually direct combat. But Americans
  • didn't break Enigma. They weren't at
  • Bletchley Park. They didn't build the
  • bombs. They didn't intercept and decrypt
  • 3,000 German messages per day for 5
  • years. That was Britain's war. The
  • invisible one fought with mathematics
  • instead of guns. Hollywood rewrites this
  • history because American audiences
  • prefer stories where Americans are
  • heroes. That's understandable. It's also
  • a disservice to history and to the
  • thousands of British and Polish pod
  • breakers whose actual achievements were
  • extraordinary enough without
  • embellishment. Alan Turing didn't need
  • American nationality to be a genius. The
  • Rens operating bombs in 12-hour shifts
  • didn't need Hollywood's approval to be
  • crucial to victory. Fasten and Graaser
  • didn't need to be American to be heroes.
  • They drowned retrieving Enigma code
  • books that helped win the Battle of the

  • 16:00
  • Atlantic. Their sacrifice was real.
  • The Hollywood version isn't Germany lost
  • the war for many reasons. superior
  • allied production, strategic
  • overextension,
  • tactical mistakes, underestimating
  • Soviet resilience. But one reason
  • remains underappreciated. For 5 years,
  • Britain read Germany's mail. Every yubot
  • position, every supply convoy, every
  • defensive plan. Enigma was Germany's
  • guarantee of secure communications.
  • Bletchley Park made it Britain's window
  • into German strategy. The codereers at
  • Bletchley didn't storm beaches or fly
  • bombers. They did something harder. They
  • broke mathematics itself. Some victories
  • are won with guns, others with
  • equations. History should remember who
  • actually solved


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