“Signed in 1947 and known as the UKUSA Agreement, it brought together under a single umberlla the SIGINT organizations of the United States, Britain, Canada, Australia, and New Zealand. Under the pact, the five nations carved up the earth into spheres of cryptologic influence, each country assigned specific targets according to its potential for maximum intercept coverage.

The UKUSA Agreement…has never been officialy acknowledged by any country even today…” Page 391, Jame Bamford’s Puzzle Palace

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