The crowning achievement in liaison activities among intelligence organizations is the agreement on Signals Intelligence (SIGINT) cooperation among the U.S., British, Australia, New Zealand, and Canadian services.
The crowning achievement in liaison activities among intelligence organizations is the agreement on Signals Intelligence (SIGINT) cooperation among the U.S., British, Australia, New Zealand, and Canadian services.
The
foundation of that cooperation was the wartime "Britain-United States
of America" agreement (the BRUSA agreement) of 17 May 1943. The complete
text of BRUSA, including its appendices, was released by the National Security
Agency (NSA) in November 1995. Text and appendices are published in Cryptologia,
"The BRUSA Agreement of May 17, 1943," 21, no. 1 (Jan. 1997):
30-38.
The
postwar UKUSA agreement was initially negotiated in March 1946 and, then,
finalized in June 1948. Christopher Andrew, "The Making of the Anglo-American
SIGINT Alliance," in In the Name of Intelligence: Essays in Honor
of Walter Pforzheimer, eds. Hayden B. Peake and Samuel Halpern, 95-109
(Washington, DC: NIBC Press, 1994).
The
materials presented under the listings for "Intelligence Liaison Among
Nations" concerns the UKUSA agreement and other cross-national liaison
activities, with the exception of items on U.S.-Israeli and U.S.-Chinese
intelligence cooperation. Materials on the latter two relationships are
presented in separate "U.S.-Israeli
Liaison and Intelligence-Related Issues" and "U.S.
Monitoring Sites in China" files.
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