This cable summarizes Ambassador Ricupero’s mission to Argentina, where he conveyed a report that Brazil had mastered uranium enrichment. President Alfonsín’s letter of reply is included.

President Alfonsín of Argentina and President Sarney of Brazil declare their commitment to peaceful nuclear energy cooperation and mutual guarantees.

In this cable to Buenos Aires, Ambassador Vazquez reports that he requested a meeting with Minister Olavo Setúbal after General Leonidas Pires Gonçalves suggested that he would support a Brazilian nuclear weapons program. Vazquez also discusses a conversation with the Brazilian Foreign Minister's chief of staff, who told Vazquez that General Leônidas Pires refuted the reports of a Brazilian atomic bomb.

This memo from the Argentine General Directorate of Nuclear Affairs and Disarmament to the South America Directorate proposes a joint Argentine-Brazilian declaration on the peaceful use of nuclear weapons. Rejecting the establishment of IAEA safeguards, the memo instead suggests a "mutual guarantee mechanism" based on cooperation and inspections on a case by case basis.

In his answer to Argentinian President Bignone, Brazilian President João Batista Figueiredo expresses satisfaction for the result achieved by the neighbor country.

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.

Argentinian President Bignone informs Figueiredo of the Argentine capacity to enrich uranium.

Report on the bilateral nuclear relationship between Brazil and Argentina from the Alfonsín presidency until the end of the Figueiredo Administration. The main theme is a possible joint declaration on the renunciation of nuclear explosives. Alfonsín and Foreign Minister Caputo are in favor, but elements within the Brazilian government remain opposed.

In this memo, the Latin American department of the Argentine Foreign Ministry conveys its opinion on the Brazilian interest in including the nuclear issue in the agenda of the Special Brazilian-Argentine Committee on Cooperation (CEBAC), that the issue should be subordinated to the solution of the question of Itaipu.

Conversations between Counselor Raul Estrada Oyuela, from the Argentine Embassy in Brasilia, and Luiz Augusto de Castro Neves, Deputy Chief of the Energy and Mineral Resources Division of Itamaraty, on the possibility of nuclear cooperation between Brazil and Argentina.