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...II]] cover name for the British signals intelligence organization; now the Government Communications Headquarters

#Government Communications Headquarters, responsible for signals intelligence

...lligence organization, then the Government Code and Cipher School (now the Government Communications Headquarters (GCHQ)), which ran the vital [[ULTRA]] cryptanalytic program against German

...K, they concentrated on different traffic than did NSA, working on British Government Communications Headquarters (GCHQ), working [[COMINTERN]] messages between various capital cities and M

{{r|Government Communications Headquarters||**}}

...telligence Service]]. Eventually, GCCS became a separate organization, the Government Communications Headquarters, with functions similar to the Canadian [[Communications Security Establish

...ing democracies — the US [[National Security Agency]] (NSA), British Government Communications Headquarters (GCHQ), Canadian [[Communications Security Establishment]], Australia's [[D

..., the [[Government Code and Cypher School]] at [[Bletchley Park]], now the Government Communications Headquarters). Lack of centralization bothered these allies. The vital British-US coope

...ssors have had a very close relationship with its British Counterpart, the Government Communications Headquarters (GCHQ). The resident U.S. representative there, the Senior U.S. Liaison Of | Government Communications Headquarters (GCHQ)