Code Breaking by Australia in World War II and the Coastal Watchers

Overview: –

This is a specific area of Australian and Allied Naval and Military History that until recently was not widely known about, due to the secrecy oath that the men and many women who were involved were required to sign. Their stories and their extraordinary contribution they made to winning the war finally in the Pacific, has only relatively recently been revealed in the public domain.

In 1942, General Douglas MacArthur arrived in Australia facing a triumphant Japanese advance. Recognizing that intel information would win or lose the Pacific War, he immediately ordered the creation of what became known as the Central Bureau. This joint American-Australian signals intelligence organisation became the engine room of Allied strategy in conjunction with the Fleet Radio Unit in Melbourne (FRUMEL).

MacArthur directly relied on this intelligence to leapfrog enemy strongholds and execute his iconic island-hopping campaign including victories by Australian forces. In addition, the extraordinary story of Captain Eric Nave RAN, will be covered, who was a pioneer in breaking Imperial Japanese Navy codes and laying the groundwork for Allied Naval intelligence during World War II.

The presentation also links these backroom cryptographic breakthroughs with the extremely heroic, frontline reconnaissance of the Coastwatchers and who rescued many Allied service personnel, including a young U.S. Naval Officer who went on to become President of the United States. Operating deep behind enemy lines, this perilous network provided the real-time naval and aerial warnings that validated Central Bureau’s intercepts. Together, these two entities formed an invisible shield that saved Australia and secured Allied naval supremacy in the Pacific.

Presenter – Nigel Rogers

Nigel Rogers spent most of his career, some thirty years, with Citi/Citibank, the US Global Bank Headquartered in New York. Nigel worked in various senior positions and was based in London, Zürich, Switzerland, and Edinburgh, and he travelled extensively with work throughout the world. Nigel retired and emigrated from the UK to Perth, Western Australia, following his marriage to Dr Heather Rogers in July 2012, after the loss of his first wife.

In retirement, one of Nigel’s main interests is in Naval and Military History. Nigel was elected President of the Naval Historical Society of Australia – WA Chapter, in September 2020, following the retirement of Dr George Carter (RAN Rtd.). Nigel has now stepped down from that role as President of the WA Chapter.

Nigel was the `Resident Historian’ at Capital Community Radio in Perth: https://capitalcommunityradio.com/interviews.html and undertook research to give Naval and Military History talks on the radio, as well as at meetings of various Societies and Institutions. Nigel is a Knight of Justice and the Almoner of the Order of Saint John of Jerusalem Knights Hospitaller in the WA Priory, whose main objective is to raise funds for the homeless in Perth, WA.

Nigel’s interest in Naval History stems from inheriting his father’s collection of Naval History books and hearing his father’s stories about his Royal Navy Service throughout World War II, that included serving in the Atlantic, the Mediterranean and on the island of Malta during the Siege in World War II.

Detail

Date and Time:1100, Wednesday 16^th. September 2026 (Sydney time)

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