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Digital Archive International History Declassified

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  • March 28, 1964

    Airgram from the Embassy of the US in Rio De Janeiro to the Department of State, 'Non-Peaceful Uses of Atomic Energy by Brazil'

    The US Embassy in Rio De Janeiro sends airgram to the Department of State regarding military pressure in Brazil to produce fissionable material for nonpeaceful purposes.

  • July 06, 1967

    Argentina Naval Intelligence Service, 'Brazil: Prospects in the Field of Nuclear Energy'

    This is an Intelligence Report regarding Brazil’s nuclear activities prepared by the Argentine Navy, which seeks to estimate Brazil’s nuclear intentions in the near future. It is mainly based on newspaper articles as well as declarations of Brazilian high-ranked scientists, diplomats and military officials.

  • December 05, 1967

    Letter from the Director of Brazilian National Nuclear Energy Commission (CNEN) Uriel da Costa Ribeiro to the Director of the Argentinian National Atomic Energy Commission (CNEA) Oscar A. Quihillalt

    Ribeiro conveys the Brazilian interest in establishing a nuclear cooperation agreement with Argentina, expressed during the visit of the Brazilian mission to the inauguration of Ezeiza Atomic facility in Buenos Aires in 1967.

  • December 29, 1967

    Letter, Director of the Argentinian National Atomic Energy Commission (CNEA) to the Foreign Minister on Nuclear Cooperation with Brazil

    The Director of the Argentinian National Atomic Energy Commission (CNEA) writes to the Foreign Minister on a visit by a group of Brazilian officials and the details of a possible agreement for nuclear cooperation between the two countries.

  • 1968

    Draft Argentinian-Brazilian Agreement in the Field of Peaceful Uses of Nuclear Energy

    Draft of a nuclear cooperation agreement between Argentina and Brazil, very likely the same one given by Brazilian authorities to the Argentinian National Atomic Energy Commission (CNEA) mission during the latter’s visit to Brazil in March 1968.

  • January 15, 1968

    Report, Argentinian Ministry of Foreign Relations, 'Nuclear Energy'

    State of nuclear energy development in Brazil and Argentina.

  • September 04, 1968

    Aide Mémoire, 'Sale of 5 Tons of Uranium to Brazil'

    A Brazilian diplomat to Argentina expresses an interest in acquiring five tons of uranium free from safeguards to Argentine authorities. CNEA and the foreign ministry of Argentina approved the request, taking into consideration the favorable diplomatic relations between the two countries at the moment.

  • December 20, 1968

    National Atomic Energy Commission Report to the Argentinian Ministry of Foreign Affairs on Brazil’s Request for Uranium

    This document reports on CNEA’s position on the exports of uranium to Brazil and reports that the operation will not produce any economic benefit. Nevertheless, it is favorable to the export as a token of Argentina’s good will in regard to nuclear cooperation with Brazil.

  • January 31, 1969

    Memorandum by Head of Planning Department of the National Atomic Energy Commission José Luis Alegria on Brazil’s Request for Uranium

    The document highlights that the export of Argentine uranium to Brazil will be a difficult operation due to diplomatic hurdles.

  • December 15, 1969

    Letter from the Director of the National Atomic Energy Commission Oscar A. Quihillalt to Argentine Foreign Minister Juan B. Martin

    Quihillalt suggests to the new Argentine foreign minister, Juan B. Martin, the formalization of the nuclear relationship with Brazil through the signature of a memorandum of understanding.

  • February 16, 1972

    Note from the Director of Argentinian National Atomic Energy Commission (CNEA) on a Possible Agreement with Brazil

    The director of CNEA, the Argentine National Atomic Energy Commission, summaries past unsuccessful attempts to organize an agreement with Brazil for cooperation in the field of nuclear energy research.

  • July 01, 1974

    Telegram, Brazilian Embassy in Buenos Aires, 'Visit of an Embassy Employee to the Nuclear Center [at] Atucha'

    Report from the Brazilian Embassy in Buenos Aires about the visit of Brazil’s Superior War College to the Atucha nuclear plant. There its director, Jorge Cosentino, explained the Argentine nuclear program in detail and expressed interest in finding formulas for cooperation with Brazil in the nuclear field.

  • September 08, 1974

    Explanatory Memorandum from the National Security Council to the President of Brazil

    Secretary-General of the National Security Council send the president of Brazil a report on attempts to establishing nuclear cooperation with Argentina in the period 1968-1974. In July 1974, on the occasion of the visit of a delegation from the Superior War College to the Argentine Atucha nuclear plant, its director, engineer Cosentino, proposed a cooperation agreement between the two countries with the objective of defusing concerns of the international community about a possible Brazil-Argentina rivalry. Despite the cautious reception of the Argentine proposal by the National Security Council, which also pointed out its possible advantages, President Geisel, in a manuscript note, said that there were several pending issues to be resolved before the establishment of nuclear cooperation between Brasília and Buenos Aires would become possible.

  • September 11, 1974

    Letter, Secretary-General of the National Security Council to the President of Brazil, on Nuclear Cooperation with Argentina

    Cover letter from an explanatory memorandum on a possible agreement of mutual cooperation in nuclear energy between Brazil and Argentina. Contains President Geisel's response to the opinion of the National Security Council about nuclear cooperation between Argentina and Brazil. It concludes that the solution of pending issues with Buenos Aires should come before advancing in the nuclear field.

  • November 24, 1976

    Notes from President of Nuclebrás Paulo Nogueira Batista to the Brazilian Ministry of Foreign Relations

    Meeting among the members of the Ministry of Foreign Relations, the Ministry of Energy, the National Commission of Atomic Energy and the Council of National Security on a nuclear cooperation agreement proposed by CNEA. The objective of the agreement was to steer away doubts about a hypothetical nuclear competition between Brazil and Argentina, after Jimmy Carter was elected president in the US. Most participants of the meeting were contrary to a nuclear cooperation with Buenos Aires.

  • 1977

    Brazil Scope Paper: Implications of the Argentine Visit

    Cyrus Vance - apparently unintentionally - left behind this document while meeting with Brazilian President Geisel. It lays out US negotiations with Argentina to ratify the Treaty of Tlateloco, to accept full scope safeguards and to delay the construction of a reprocessing facility in exchange for US nuclear assistance and Brazil’s acceptance of a moratorium on the construction of a reprocessing facility.

  • February 11, 1977

    Telegram on Argentina's Stance Regarding a Brazil-West Germany Nuclear Cooperation Agreement

    A telegram received from the Brazilian Embassy in Ottawa, detailing Argentina's stance regarding a nuclear cooperation agreement between West German and Brazil.

  • March 22, 1977

    Letter to Hugo Abreu on a Conversation between Vice-Chief of Staff of the Armed Forces Admiral José Calvente Aranda and the Argentine Ambassador Oscar Camilión

    Abreu reports a conversation in which ambassador Camillión revealed President Videla’s desire to visit Brazil, implying that Itaipu was a sensitive issue, but of domestic nature. The Argentine government suggested a joint declaration on nuclear issues to turn away international suspicions on "the production of the bomb."

  • September 07, 1977

    Letter from US Congressman Paul Findley to Brazilian Vice-President Adalberto Pereira dos Santos

    Findley proposes a system of mutual inspection of nuclear facilities between Argentina and Brazil. According to the agreement he proposed, Brazil and Argentina would renounce the intention to develop a nuclear device and would accept mutual inspections of their respective nuclear facilities.

  • September 07, 1977

    Report, Brazil, 'Official Mission to Washington, DC, While Representing Brazil at the Treaty Signing Ceremonies on the New Agreements Over the Panama Canal'

    Vice-President Adalberto Pereira reports on a meeting with Republican Congressman Paul Findley, who proposed, on a personal basis, the creation of a nuclear mutual surveillance system between Brazil and Argentina, with a view to allaying doubts about a possible arms race. Findley had already presented the proposal to Ambassador Geraldo Holanda Cavalcanti, (aide to Minister Silveira) on the occasion of the visit to Brasília on August 23 1977. According to the agreement he proposed, Brazil and Argentina would renounce the intention to develop a nuclear device and would accept mutual inspections of their respective nuclear facilities.