The Fall of Singapore – The Great Betrayal – BBC2

BBC2 recently broadcast a documentary titled The Fall of Singapore – The Great Betrayal. The synopsis from the BBC’s website says that:

Pearl Harbor and the Fall of Singapore: 70 years ago these huge military disasters shook both Britain and America, but they conceal a secret so shocking it has remained hidden ever since. This landmark film by Paul Elston tells the incredible story of how it was the British who gave the Japanese the knowhow to take out Pearl Harbor and capture Singapore. For 19 years before the fall of Singapore to the Japanese, British officers were spying for Japan. Worse still, the Japanese had infiltrated the very heart of the British establishment – through a mole who was a peer of the realm known to Churchill himself.

The main contributors to the programme were Prof. Richard Aldrich of Warwick University, a leading historian of the British intelligence services, and Dr Antony Best of the LSE, an expert on Anglo-Japanese relations. Many of the assertions made were justified by reference to primary documents in the UK National Archives.

At the end of the First World War, the Royal Navy led the world in naval aviation. Japan, which was then allied to Britain, attempted to obtain details of Britain’s new aircraft carriers. Ten requests for information were rejected, but Japan was allowed to recruit a civilian mission.

It was composed of former members of the Royal Naval Air Service, which had merged with the Royal Flying Corps to form the Royal Air Force in April 1918. The mission was led by an experienced naval aviator, William Forbes-Sempill, the Master of Sempill and the son of a Scottish peer. It was in Japan during 1921-23.

The programme argued that the British mission allowed Japan to develop the naval aviation that enabled it to attack Pearl Harbor and to sink Force Z, composed of HMS Prince of Wales and Repulse, off Malaya in December 1941. This is perhaps going too far; Stephen Roskill contended in his history of the RN between the wars that the Japanese would have caught up with the RN and USN eventually, but that the Sempill mission speeded up the process.[1]

The programme suggested that the Japanese needed British help in order to develop naval aviation. They were behind Britain and the USA, but not by as much as the programme suggested. The first deck landing on an aircraft carrier was on HMS Furious on 3 August 1917, which then had a short flight deck forward of her superstructure.

The first carrier with a full length deck was HMS Argus, which was converted from an incomplete liner and completed in September 1918. Britain began construction of the HMS Hermes, the world’s first purpose built carrier, on 15 January 1918. She was launched on 11 September 1919 but not completed until February 1924.

Japan, meanwhile, laid down its first carrier, IMS Hosho, on 16 December 1919. She was launched on 13 November 1921 and completed on 27 December 1922. The first take off from and landing on her deck took place on 22 February 1923. The first landing on a carrier that was underway was on the USS Langley in November 1922. Conversion of the Langley, the USN’s first carrier, from a collier had been completed on 20 March 1922.

The claim made by the programme that the Japanese needed British help to build a carrier would seem to be an exaggeration, since the Hosho was under construction before the Sempill Mission arrived in Japan, but the mission clearly helped the Japanese to develop carrier aviation quicker than they could have managed if starting from scratch.

The second in command of the base from which the mission operated was Yamamoto Isoruku, in 1941 commander of the Japanese Combined Fleet and mastermind of the attack on Pearl Harbor. By 1941 the IJN was well ahead of the RN and at least equal to the USN in carrier aviation, so the Japanese had taken the initial lessons taught to them by the Sempill Mission and built on them by their own efforts. One of Britain’s problems was that most of its naval aviators transferred to the RAF in 1918, so it had few senior officers with air experience in 1939.

Another former RNAS pilot, Frederick Rutland, was recruited by the Mitsubishi company and taught the Japanese deck landing techniques. He was the son of a labourer and was promoted from the ranks. He was known as Rutland of Jutland because he carried out a reconnaissance mission at the Battle of Jutland.

At this stage, Sempill and Rutland had provided an ally with information as part of officially sanctioned missions. The Anglo-Japanese Alliance was ended by the treaties signed at the 1921-22 Washington Naval Conference and the two countries became potential foes. Despite this, Sempill continued to supply information to Japan. He had asecret job that seemed to make him an international arms salesman for Britain. This gave him access to secret information and brought him into contact with foreign navies and air forces, including those of Chile, Brazil and Greece.

MI5 became suspicious of Sempill’s links with Japan and tapped his phone and intercepted his mail. This provided evidence that he was supplying Japan with secret information. Britain had broken some Japanese codes and intercepted Japanese diplomatic cables relaying some of these from London to Tokyo.

In 1926, Sempill visited the Blackburn aircraft factory, ostensibly to inspect a new single-seater aircraft. He managed to obtain plans of the top secret Blackburn Iris flying boat. Soon after this, he was interviewed by the Deputy Chief of the Air Staff, the Director of Public Prosecutions and a senior MI5 officer.

A meeting chaired by Sir Austen Chamberlain, the Foreign Secretary, decided not to prosecute Sempill. His position in society would make this embarrassing, but there was also the perennial problem with espionage cases that it would be hard to convict without revealing secrets, including the fact that Britain had broken Japanese codes. The relevant files are now publicly available in the National Archives, but were kept secret for many years.

There are no MI5 files on Sempill from the 1930s in the National Archives. One from the 1940s states that he was a paid consultant for Mitsubishi in 1931. He needed the money as he was overdrawn by £13,000; nearly £750,00o in 2012 terms.

During the 1930s Sempill became President of the Royal Aeronautical Society and succeeded his father as Lord Sempill, sitting in the House of Lords as a Conservative. He was a member of The Link, an organisation established in 1937 to promote Anglo-German friendship, and The Right Club, which aimed to rid the Conservative Party of Jewish influence.

Whether or not Sempill was involved, Japanese espionage against Britain continued during the 1930s. In 1931, Japan invaded Manchuria. This raised fears of an Angl0-Japanese war, and Britain re-started work on a large naval base at Singapore. The programme suggested that construction began in 1931; in fact, building started in 1923 but was suspended more than once during the 1920s due to changes in government and budgetary constraints.

During the 1930s Japanese businessmen bought up large amounts of property in Malaya. The programme argued that many of them were spies. Japan bought the plans for the Singapore base from a British serviceman called Roberts.

The Singapore base was heavily defended against attack from the sea. The British thought that it would be impossible to invade Malaya and then attack Singapore by land. In 1937 Joe Vinden (spelling?), a British Army intelligence officer, reconnoitred the Malayan coast and concluded that an invasion of Malaya followed by a land attack on Singapore was feasible.

Vinden correctly forecast that the Japanese would land at Kota Bharu in north-east Malaya during the November-February monsoon season; others thought that an amphibious landing at that time of year was impossible. His recommendation that funds allocated to coastal artillery be instead spent on aircraft was ignored.

Japan also had spies in Hawaii, one of whom was Rutland. He later told interrogators that he was ordered to report on the attitude of the population to the possibility of war and on the dispositions of the US fleet. The FBI soon became suspicious of his activities.

Sempill was brought back to the Admiralty when Winston Churchill was appointed First Lord of the Admiralty, the cabinet minister responsible for the navy, on the outbreak of war in 1939. Sempill gave an assurance that he would not discuss service matters with the Japanese. However, in August 1941 he intervened to secure the release of Satoru Makahara, manager of Mitsubishi’s London office, who had been arrested on suspicion of espionage.

At the same time Churchill and US President Roosevelt held secret talks at Placentia Bay. Shortly afterwards the British code breakers at Bletchley Park intercepted and decoded a signal from the Japanese Embassy in London to Tokyo that gave precise details of the talks. A report that was sent to Churchill about the intercept remained secret for 60 years; he noted that the Japanese version was ‘pretty accurate stuff.’ It had to have come from somebody close to him.

Richard Aldrich said that the most important Japanese source with access to Churchill was Sempill. A few days later MI5 told Churchill that the Japanese had information about his inner circle. He demanded proof and a month long surveillance operation produced the names of Sempill and Commander McGrath, who had been with Sempill in Japan.

Churchill stated that Sempill could not remain at the Admiralty. When Sempill was asked to resign his commission, however, Churchill said that he only wanted Sempill to leave his current job, not the RN. Antony Best pointed Sempill was a Conservative peer who would have had friends in the Conservative Party. Richard Aldrich argued that interning Sempill would look very bad for the government, which had employed him even though he had been under MI5 surveillance since 1925.

Rutland was deported to Britain by the Americans and interned. He was released near the end of the war and later committed suicide. Sempill was given a choice of either resigning his commission or taking up a post in northern Scotland; the programme did not make it clear that which he chose. He died in 1965.

It was argued that Sempill was not charged under the Official Secrets Act or interned under Defence Regulation 18B because he was a well connected aristocrat and his arrest would embarrass the government. Other members of the upper classes were interned, including Sir Oswald Moseley, founder of the British Union of Fascists and his wife Diana, one of the Mitford sisters, Admiral Sir Barry Domvile and Archibald Maule Ramsay, the Conservative MP who founded The Right Club.

However, none of them had held any government position during the war, whilst Sempill was close to the Prime Minister. This would suggest that embarrassment to the government in general and Churchill in particular for appointing a man previously suspected of supplying secrets to Japan to a sensitive post was a stronger reason for not taking action against him than his social position.

Another reason might be that a trial could have revealed that the British had broken Japanese codes. The programme mentioned this when discussing why he was not charged in 1925, but did not repeat the point when discussing his lack of punishment in 1941.

This was a very interesting programme. It should be noted that it was not as new a revelation as the BBC claimed. The relevant documents were released to public view at the National Archives in 1998, and The Independent newspaper reported on them, quoting Richard Aldrich. Nevertheless, the programme was well made, justified its claims with reference to primary documents and brought the story to a wider audience.


[1] Stephen Roskill, Naval Policy Between the Wars, vol. i (London: Collin, 1968), p. 529.

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10 Comments

Filed under Political History, Reviews, War History

10 responses to “The Fall of Singapore – The Great Betrayal – BBC2

  1. Pingback: An amazing act of wartime betrayal – NightHawk

  2. The truth is hidden with in the veil of secrets, that few know the whole truth and in time know one will. It is however possible to arrive at the conclusion that that we knew and held back information from the americans about pearl harbour, that lead to the fall singapore so America would enter the war.

  3. I firmly believe, after much research, that FDR wanted the war. So, you can put blame anywhere and everywhere – America would have gotten in one way or the other.

  4. Trevor

    All orchestrated by the global élite: think Rockefeller, Rothschild and their banksters … under their minion-politicians’ noses.

  5. You believe in the conspiracy theory of history. I believe in the cock-up theory.
    Caroll Quigley states on p. 620 of ‘Tragedy and Hop’e that although the Americans had broken the Japanese codes ‘they did not, however, have
    any details of the Japanese military plans, as these were not transmitted by radio’, so I can’t see how his book supports the idea of that the Japanese attack of December 1941 was orchestrated by a global elite.
    None of other websites that you’ve linked deal with the subject of this blog post: the Japanese attack on Malaya in December 1941 and the subsequent surrender of Singapore.
    Future posts to this blog full of links to irrelevant websites will not be approved.

  6. Interesting blog! Is your heme custom made or did you download it frpm somewhere?
    Atheme like yours with a few simple tweeks would reeally mazke my blog jump out.

    Please let me know where you got your theme. Bless you

  7. Pingback: East and West (5) | pacificparatrooper

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