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Light shines on Five Eyes SIGINT collection mechanisms

5th May 2020 - 13:00 GMT | by Thomas Withington in Toulouse


Although the mechanisms by which the ‘Five Eyes’ partners share their intelligence have been shrouded in secrecy for some years, revelations in recent years have unlocked some facts on the matter.

The supranational Five Eyes intelligence-sharing arrangement between Australia, Canada, New Zealand, the UK and the US has generated its fair share of controversy and debate since its inception as a result of the 1943 Britain-United States of America (BRUSA) agreement.

This set down the mechanisms for SIGINT sharing between the UK and US during the Second World War. It was later reinforced with the bilateral UKUSA Agreement of 5

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Thomas Withington


Thomas Withington

Thomas Withington is an award-winning analyst and writer specialising in electronic warfare, radar and military …

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