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May 13, 1959

Department of State Bureau of Intelligence and Research, Intelligence Information Brief No. 139, 'Disarmament Negotiations: The Fourth Power Problem: France'

This document was made possible with support from Carnegie Corporation of New York (CCNY)

According to intelligence reports, the French were trying to acquire from US firms the diagnostic technology needed to measure a nuclear explosion. INR did not believe that France had identified a specific test site and noted that France was under pressure to hold a test somewhere other than North Africa; nevertheless it went ahead with one in Algeria in early 1960.

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National Archives, Record Group 59, Records of the Department of State (hereinafter RG 59), Entry UD-UP 139, INR/DDR, Bureau of Intelligence and Research, Reports Coordination and Review Staff, Intelligence Documents and Reports, 1958-1966, box 145, Intelligence Information Briefs. Contributed by William Burr, National Security Archive.


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