16 Facts About Central Bureau

1.

Central Bureau was one of two Allied signals intelligence organisations in the South West Pacific area during World War II.

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2.

Central Bureau was attached to the headquarters of the Allied Commander of the South West Pacific area, Douglas MacArthur.

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3.

Central Bureau's role was to research and decrypt intercepted Imperial Japanese Army traffic and work in close co-operation with other SIGINT centres in the USA, United Kingdom and India.

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4.

Central Bureau made his way to Melbourne, arriving there on 22 March 1942.

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5.

Central Bureau felt he had experienced problems with such an arrangement when he was in Manila.

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6.

Central Bureau was a joint US-Australian signal intelligence organisation, established on 15 April 1942 under the command of US Army Major General Spencer B Akin, with headquarters in Melbourne.

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7.

Central Bureau described the role of the group as "the interception and cryptanalyzing of Japanese intelligence".

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8.

Central Bureau was established in a gabled, ivy-clad mansion called "Cranleigh" in Domain Road, at South Yarra, Melbourne.

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9.

Central Bureau's role was to research and decrypt army and air intercept traffic and work in close co-operation with other SIGINT centres in the USA, United Kingdom and India.

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10.

Central Bureau was responsible for arranging for the first group of US "SIGINT" personnel to come to Australia, and as Akin's control was indirect he was responsible for day-to-day running of the bureau.

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11.

Central Bureau was succeeded by Major Abraham "Abe" Sinkov, a mathematician, who was appointed assistant director of Central Bureau.

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12.

Central Bureau had visited Britain in 1941 to facilitate the exchange of cryptographic information.

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13.

Central Bureau did not break any high level Japanese Army codes until mid-1943 success with the Water Transport Code.

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14.

The Central Bureau spent a day drying the damp pages, and the flood of decoded messages that ensued meant that MacArthur has to ask the US Navy for assistance .

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15.

Central Bureau reportedly sent the decrypted message to FRUMEL where it was reportedly translated by a U S Navy linguist.

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16.

Central Bureau is the precursor to the Defense Signals Bureau, which after a number of name changes is called the Australian Signals Directorate.

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