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https://www.thetimes.co.uk/article/beijings-african-port-ready-for-aircraft-carriers-2kdns0xsg?shareToken=d500a9e423022d6e9feb05b1b8991f93

Another article from the London Times about Chinese naval expansion. This one says that a new 330m pier at China’s base in Djibouti in east Africa will accommodate either of China’s two aircraft carriers, the 304m Liaoning and the 315m Shandong, although the third Chinese carrier that is currently under construction is believed to be over 400m long.

The article also states that the Pentagon believes thatChina plans to develop a base near Gwadar in Pakistan, although the Chinese have denied this.

https://www.thetimes.co.uk/article/us-would-lose-any-war-fought-in-the-pacific-with-china-7j90bjs5b?shareToken=e90adea7c355cbfd7d1f198608975f3b

Article from the 16 May edition of the London Times claiming that Pentagon wargames of a US Cina naval war indicate that by 2030 the USN would be defeated because of new Chinese missiles and ships, including attack submarines and aircraft carriers.

Probably a deliberate leak as part of a campaign to increase spending on the USN.

I recently attended Top Secret, an exhibition at the Science Museum in London about codebreaking, ciphers and secret communications. It has now finished but will open again at the Manchester Museum of Science and Industry in October 2020.

The exhibition was timed to coincide with the 100th anniversary of the foundation of GCHQ [Government Communications Headquarters], the UK’s Intelligence, Security and Cyber agency. The exhibits came mostly from the historic collections of the Science Museum and GCHQ, with most of the latter never having previously been shown to the public.

Definitions 

Code:  A process that replaces a word or phrase with an arbitrary symbol of group of characters (numbers or letters).

Cipher: A repeatable, standardised process that replaces one character with another to encrypt a message.

Cipher machine: A machine that automatically encrypts a message one character at a time using a cipher.

Key: Use of ciphers is governed by secret settings called a ‘key’ shared between authorised users to make sure only they can decipher the message.

The exhibition generally talked about code-breakers and decoding. I have followed this terminology.

Pre 20th Century

The exhibition began by describing the history of codes and ciphers. In 405 BCE, the Spartan general Lysander is said to have received a secret message that was revealed by winding a piece of parchment round a rod of a particular thickness.

By 50 BCE, simple ciphers that replaced each letter of a word with another were being  used. These were named Caesar Ciphers after the Roman general Julius Caesar, but their use predated him.

Around 850 BCE, the Arab scholar and mathematician al-Kindi became the first person to describe a system of deciphering encrypted messages based on how often a language uses each letter, now known as frequency analysis.

The British government was intercepting and reading encrypted messages long before the foundation of GCHQ. Information found in decoded messages implicated Mary Queen of Scots, exiled in England, in a plot to assassinate Queen Elizabeth of England and put Mary on the English throne. Mary was executed as a result. 

After the War of the Three Kingdoms, also known as the English Civil War, Oliver Cromwell’s government protected itself against plots to restore the monarchy by intercepting and decoding letters from Royalist supporters.

In 1844, the British intercepted and decoded letters from Guiseppe Mazzini, the leading campaigner for Italian unification, who was then living in London. The decoded messages were shown to the government of Austria, which then controlled northern Italy, with the rest of the country being divided into small states.

The bulk of the exhibition was concerned with the 20th and 21st centuries.

First World War

During the First World War, underground telephone networks were laid throughout the trench systems. It was initially possible for the enemy to overhear conversations. However, the Fullerphone, invented by Captain, later Major General Algernon Fuller of the Royal Engineers allowed secure communications and avoided interference between different lines.

German Zeppelins were detected by their radio signals, thanks to a network of Marconi direction finders.

In 1914, Britain had a global network of communications cables. So did Germany, but at the outbreak of war, the Royal Navy cut the German cables. This meant that Germany had to communicate with its overseas embassies by radio, which the British were able to intercept and decode.

The Germans were allowed to use a Swedish cable to the USA and also, for the express purpose of discussing a US attempt to mediate peace, a US one. Both these, however, passed through the UK, enabling the British to intercept them. In particular, the British decoded the Zimmermann Telegram. It proposed that if the German campaign of unrestricted submarine warfare caused the USA to declare war on  Germany, Mexico should join the war against the USA and would regain the territory that it had lost to the USA in the Mexican-American War of 1846-48 after a victorious war.

Code-breaking during the First World War had been carried out by people from many walks of life, who mostly returned to their pre-war jobs at the end of the war. However, the importance of code-breaking and security in the war led Britain to in 1919 establish the Government Code and Cipher School, renamed GCHQ in 1946.

Attempts were made in the 19th and early 20th century to produce mechanical cipher machines, but these were too easy to break. By the 1920s, more secure electro-mechanical machines were available.

Second World War

In World War II, the Germans had two code machines: the Enigma and the more secure Lorenz. The Enigma was a military version of a machine originally built for commercial use.

Before the war, Marian Rejweski, a Polish code-breaker, worked out the Enigma’s internal wiring, making it possible to decipher its messages, although it was still necessary to work out the settings, which were changed frequently. The Poles shared the results of their work with the British and French, enabling the British code-breakers at Bletchley Park to start reading Enigma messages far more quickly than if they had had to start from scratch.

The messages were intercepted at one of about 40 Y stations around Britain, transcribed, mostly by women and then sent to Bletchley Park to be decoded.

The settings of the Enigma machines changed daily, meaning that it was necessary to work out the rotor settings before decoding messages. Rejweski built an electro-mechanical machine called a Bomba to help with this process. The British version, developed by Alan Turing with Gordon Welchman contributing an important refinement, was called a Bombe.

The British used a modified Enigma machine called a Typex for their coded messages. It remained secure throughout the war. Once the Enigma settings had been worked out by hand and the Bombes, the message was put through a Typex modified to be used as an Enigma receiver.

The Germans had over 100,000 Enigma machines but only about 200 more sophisticated 200 Lorenz machines. The latter were used for the most secret communications between senior commanders. It had 12 rotors and 501 pins, compared with three rotors in an early Enigma machine, increasing to four for naval machines from late 1941. This hugely increased the number of possible settings, making it very difficult to break Lorenz messages. However, a breakthrough was made in August 1941 when a Lorenz operator sent a message twice with only minor changes and using the same settings.

Lorenz                                                                 Enigma

In 1943, Tommy Flowers, a Post Office Engineer [the British telephone network belonged to the Post Office until privatisation in the 1980s], came up with the idea that an entirely electronic machine could automate the process of working out the Lorenz settings. Many code-breakers were sceptical about using an entirely electronic machine because it would require thousands of unreliable glass valves.

Flowers, however, had the machine, called Colossus, operating by January 1944 and 10 such machines were in use by September 1945. The government regarded these early computers as being too valuable to reveal. Eight were dismantled for parts and GCHQ continued to use the other two for unknown purposes until the mid 1950s. Only a few parts remain today.

Amongst the Lorenz messages decoded after the introduction of Colossus was one that revealed that the German High Command had fallen for the Allied deception plan that the June 1944 landing in France was to take place in the Pas-de-Calais rather than in Normandy.

As well as breaking enemy communications, GCCS was responsible for keeping British government communications secure. The exhibition included a 1941 secure telephone, known as a Secraphone, used by Winston Churchill. This was an early model that could deter only a casual listener, more secure versions were introduced later in the war.

 

Cold War

GCHQ, as GCCS became in 1946, continued in the same roles in peacetime. A secure telephone used by Prime Minister Harold MacMillan to communicate with US President John F. Kennedy during the 1962 Cuban Missile Crisis scrambled calls so that anybody listening in could not understand what was being said. Secure briefcase telephones that could be used by leaders when away from their offices were later developed. The example on display was used by Margaret Thatcher during the 1982 Falklands War to inform the Ministry of Defence of a change in Britain’s rules of engagement, resulting in the sinking of the Argentinian cruiser ARA General Belgrano.

In 1961, five members of what became known as the Portland Spy Ring were arrested. Three of them, a couple calling themselves Helen and Peter Kroger and a man going under the name of Gordon Lonsdale were KGB agents operating under deep cover. The Krogers were actually called Morris and Lona Cohen whilst Lonsdale was really Colonel Konon Molody of the KGB. The other two, Henry Houghton and Ethel Gee, were British citizens employed at the Royal Navy’s Underwater Detection Establishment.

Houghton and Gee copied secret documents, which they then passed to Lonsdale-Molody. He gave them to the Krogers, who transmitted them to the USSR using a powerful transmitter. They thought that the powerful radio signals from a military base near their bungalow in Ruislip in west London would probably mask their transmissions but GCHQ was able to monitor them and prove that they were in communication with the USSR.

All five were sentenced to long terms in prison. Lonsdale-Molody and the Kroger-Cohens were swapped for British agents arrested in the USSR. Houghton and Gee were released after serving nine out of 15 years and then married

By the 1970s some countries, notably the USA and the USSR had spy satellites orbiting the Earth. The UK had a network of military communications satellites called Skynet: the first was launched in 1969, 15 years before the first Terminator film featuring Skynet as the villain. However, for spy satellites the UK relied on the USA.

During the 1982 Falklands War, US spy satellites had other priorities in South America. The UK therefore decided to launch its own spy satellite, called Zircon under the guise of it being Skynet IV. The journalist Duncan Campbell found out and made a TV documentary revealing the existence of Zircon. Police raids and a court injunction delayed transmission and had been cancelled on cost grounds by the time that the programme was shown. The case did bring more public attention onto GCHQ.

Today

As well as gathering signals intelligence, GCHQ today is concerned with combating cyber attacks on the UK. In May 2017, a ransomware virus called WannaCry infected the computers of thousands of people and organisations, including those of the British National Health Service. The UK and other countries believe that it originated in North Korea. The exhibition concluded with a number of recordings in which anonymous GCHQ employees talked about their work/.

 

 

 

 

 

 

 

 

Thomas Crisp, born in 1876, was a Lowestoft fishing captain before the First World War. His age and the importance of his profession to the war effort meant that he continued to  be a fisherman in the early stages of the war.  U-boats, however, were sinking fishing vessels as well as larger merchant ships and Crisp was recruited serve in a force of secretly armed fishing vessels that would protect the fishing fleet.

By the summer of 1916, he had joined the Royal Naval Reserve and was captain of the  HM Armed Smack I’ll Try, formerly the G & E. Like other fisherman captaining fishing vessels requisitioned by the Royal Navy, he held the rank of Skipper. His son, also called Thomas, was a member of his crew.

I’ll Try frequently operated with another secretly armed smack, the Ethel & Millie, which sometimes went by the name Boy Alfred.  On 1 February 1917, they claimed to have sunk two U-boats. The Admiralty paid the crews a bounty for this action and awarded Crisp and the other skipper the Distinguished Service Cross. However, no U-boats were lost that day. [1]

Crisp was offered a position on a larger Q-ship, but declined as he wanted to remain close to his terminally ill wife.

On 15 August 1917, the two smacks were operating  together off the coast of East Anglia, acting as bait for U-boats.  I’ll Try had by then been renamed Nelson. Just after 2:45 pm, Skipper Crisp spotted something on the horizon, realised that it was a submarine and ordered the Nelson, which was armed with a 13 pounder  gun, to clear for action just before a shell landed 100 yards off her port bow.[2]

About the fourth shell fired by the U-boat hit the Nelson on the port bow just before the waterline. Three more then hit her, the last of which passed right through the Nelson without exploding, hitting Skipper Crisp on the way. Tom junior took over the tiller, but the smack was sinking. Skipper Crisp ordered that the following message be sent by carrier pigeon:

‘Nelson being attacked by submarine. Skipper killed.  Send assistance at once.’[3]

Skipper Crisp ordered that the Nelson be abandoned and her confidential books be thrown overboard but declined to be lowered into the lifeboat. He asked to be thrown overboard but was too badly wounded to be moved. He was therefore left on the deck of his sinking vessel whilst the rest of the crew rowed away in the lifeboat.[4]

The survivors rowed for the rest of the day and all the next. They saw several ships but were unable to attract their attention. On the morning of Friday 17 August, they moored to the Jim Howe Buoy and were rescued later that day by the minesweeper HMS Dryad, 41 hours after they abandoned the Nelson.

After sinking the Nelson, the U-boat turned on the Ethel & Millie, which had only a 6 pounder gun.  Her crew abandoned ship after running out of ammo and were last seen by the Nelson’s crew lined up on the U-boat’s deck.[5]

Nothing more was heard of Ethel & Millie’s crew. Tony Bridgland suggests that the U-boat may have been UC-41, which was blown up by her own mines in the Tay Estuary five days later, in which case the survivors could have been taken on board and shared the fate of the captors.[6]

U-boat.net, however, says that it was UC-63, which survived that patrol to be sunk by the British submarine E-52 on 1 November 1917. In that case, they were probably left to drown. The Germans regarded merchant seamen who fought back as being francs-tireurs or partisans and thus liable to execution: see the fate of Captain Charles Fryatt, a British merchant captain who was executed on 27 July 1916 for attempting to ram a U-boat.

Another possibility is that they were interrogated, put back into their lifeboat  and lost at sea.

None of Ethel and Millie’s crew were civilians. Two were RN sailors: Able Seamen Edwin Barrett and Alfred Preece. The others were members of the RNR: Skipper Charles Manning, 2nd Hand Spencer Gibson and Deck Hands John Lewis, Arthur Soames and Hugh Thompson: source naval-history.net

Skipper Crisp was awarded a posthumous Victoria Cross. Tom Crisp junior collected it and his own Distinguished Service Medal from King George V on 19 December 1917, when Leading Seaman Percival  Ross, the Nelson’s gunner, received a bar to his DSM.[7]

The full citation for Crisp’s VC, along with all those awarded for actions on Q-ships, was not published until after the war for security reasons. It is below: source naval-history.net.

Action of H.M. Armed Smack “Nelson,” on the 15th August, 1917.

On the 15th August, 1917, the Smack “Nelson” was engaged in fishing when she was attacked by gunfire from an enemy submarine. The gear was let go and the submarine’s fire was returned. The submarine’s fourth shot went through the port bow just below the water line, and the seventh shell struck the skipper, Thomas Crisp, partially disembowelling him, and passed through the deck and out through the side of the ship. In spite of the terrible nature of his wound Skipper Crisp retained consciousness, and his first thought was to send off a message that he was being attacked and giving his position. He continued to command his ship until the ammunition was almost exhausted and the smack was sinking. He refused to be moved into the small boat when the rest of the crew were obliged to abandon the vessel as she sank, his last request being that he might be thrown overboard.

(The posthumous award of the Victoria Cross to Skipper Thomas Crisp, D.S.C., R.N.R., 10055 D.A., was announced in London Gazette No. 30363, dated the 2nd November, 1917.)

 

[1] T. Bridgland, Sea Killers in Disguise: The Story of the Q Ships and Decoy Ships in the First World War (London: Leo Cooper, 1999), p. 118.

[2] A. S. Hurd, The Merchant Navy, 3 vols (London: HMSO, 1921). vol. iii, p. 59.

[3] Ibid., p. 60.

[4] Ibid.

[5] Ibid., pp. 60-61.

[6] Bridgland, Sea Killers, p. 120.

[7] Ibid., p. 42.

As it turns out, Red Stahley wasn’t the only member of the family who had an interesting pet experience during the war.  My uncle, Frank Morris, serving in the Army in Burma was the proud own…

Source: Frank’s panda in Burma