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Digital Archive International History Declassified

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  • June 23, 1963

    National Intelligence Estimate NIE 4-63, 'Likelihood and Consequences of a Proliferation of Nuclear Weapons Systems'

    This NIE comes to the general conclusions that “there will not be a widespread proliferation of nuclear weapons over the next 10 years” and discusses programs in various countries (Israel, China, Sweden, India, West Germany, Japan, etc.) This copy includes newly declassified references to the Israeli nuclear weapons program, including the conclusion that “the Israelis, unless deterred by outside pressure, will attempt to produce a nuclear weapon some time in the next several years.”

  • June 23, 1963

    Bulgarian Foreign Ministry (Angelov), Cable to Bulgarian Embassy, Ankara

    Deputy Forieng Minister Lubomir Angelov transmits to Bulgaria's embassy in Turkey information from Bulgarian Ambassador to Great Britain Radenko Grigorov. Angelov's message is handwritten and reports news about Soviet and US submarine presence in the Mediterranean, which initially Grigorov acquired from Turkey's ambassador to Great Britain.

  • June 23, 1963

    Hungarian Embassy in Havana (Görög), Report on Reactions to Fidel Castro’s Trip to the Soviet Union

    Chargé d’Affaires ad interim Erzsébet Görög writes a preliminary assessment of Castro’s state visit to the Soviet Union in 1963. Görög reports on improvements in Cuba’s party organization and positive reactions from the Cuban public and media on Castro’s visit. Görög notes different reactions to the visit between the economic/technical and artistic intelligentsia, adding that “Khrushchev managed to win Fidel over to his side in the Soviet-Chinese dispute.” Other topics include emigration and external counter-revolutionary activities.

  • June 24, 1963

    Agreement between representatives of Soviet and Czechoslovak security authorities on how to enhance security coordination

    This agreement between the representatives of seven Soviet and seven Czechoslovak security agencies relates to enhanced security coordination between the two countries. The parties agree to share technological changes, various resources and intelligence that is relevant to state security.

  • June 25, 1963

    Report from Hungarian Embassy, Prague, on Czechoslovak-Cuban Relations

    Hungarian ambassador to Czechoslovakia Lajos Cséby summarizes Deputy Head of the Sixth Main Department [of the Czechoslovak Ministry of Foreign Affairs] Stross’s report on relations between Cuba and Czechoslovakia. Stross reports friendly relations between the two countries, which did not experience difficulties during the Cuban Missile Crisis. Stross outlines Cuba’s problems, economically and politically, and believes that Cuba’s revolutionary success depends on its economic growth. Cuba misunderstood the Soviet Union’s approach to the Cuban Missile Crisis. This led to signs of Chinese influence on Cuban politics, which Stross believes are reversing since Castro’s [1963] visit to the Soviet Union.

  • June 28, 1963

    Memorandum from the Mexican chargé d’affaires in Washington (OAS) regarding a meeting between Alexis Johnson and Latin American Ambassadors

    At the request of the United States Delegation, the Council of the Organization of American States met this morning, in a “secret” session, acting provisionally as an Organ of Consultation, on the case of Cuba. The object of the meeting was to listen to Mr. Alexis Johnson, Undersecretary of State for Political Affairs, about the latest developments registered in Cuba. The talk was divided into three parts, namely: Presence of Soviet troops on the island; Visit by Prime Minister Fidel Castro to the Soviet Union; and Internal situation in Cuba.

  • July 01, 1963

    Cable from Dutch Embassy, Havana (Boissevain), 1 July 1963

    The cable concerns a noon meal held at the Dutch Embassy, with Fidel Castro as the guest of honor. The primary topic of discussion at the meal is the status of the Cuban economy and the industrialization process, along with trade and commercial relations with the Soviet Union.

  • July 04, 1963

    Transcript of Meeting of the Political Bureau of the CC of Romanian Worker’s Party

    The conversation focuses on whether or not to publish declarations made by the Chinese Communist Party and those made by the CPSU. The Romanians are concerned how the people will react to tension between the two communist countries.

  • July 05, 1963

    Bulgarian Ministry of Internal Affairs, Information Report on NATO

    On 5 July 1963 the Bulgarian Ministry of Internal Affairs completed an information report on NATO's activity during the Cuban Missile Crisis. In the report, the ministry outlines detailed espionage carried out by NATO agents. According to the report, the NATO Military Intelligence Services provided instructions for NATO member-states' military attaches stationed in Warsaw Pact countries and agents they could get to cooperate with them. Agents were to observe and report specific military intelligence collecting in Warsaw Pact countries -- arms deliveries, missile sites, military movements, etc. The report also includes explanation of how the attaches carried out their intelligence gathering -- reading official press, speaking in Russian and misrepresenting themselves as Russian, etc . The Bulgarian Interior Ministry notes that Western governments were well-informed of Bulgarian military structures -- including exact formations and secret designations.

  • July 08, 1963

    Cable from Dutch Embassy, Havana (Boissevain), 8 July 1963

    Boissevain writes of a conversation Fidel Castro had with his wife, namely about how some ideals cannot translate into reality. Castro is interested in pursuing an agreement of some kind with the United States, and seeks to use Boissevain as the middle man. Boissevain is hesitant about any kind of deal with Castro, and asks for instructions on how to proceed.

  • July 08, 1963

    Cable from Dutch Embassy, Havana (Boissevain), 8 July 1963

    Boissevain writes in continuation of the previous cable regarding Castro's desire for a mediator in an agreement with the United States. The Swiss or Czech ambassadors are offered as alternatives by Boissevain. Castro also notes that the Cuban debt to the Soviet Union is far to large, although he still wishes to continue revolution, creating this impasse between Cuba and the United States.

  • July 08, 1963

    Meeting of the Delegations of the Communist Party of the Soviet Union and the Chinese Communist Party, Moscow, 5-20 July 1963

  • July 09, 1963

    Cable from Dutch Foreign Minister Joseph Luns, The Hague, to Dutch Embassy, Havana (Boissevain), 9 July 1963

    Dutch Foreign Minister Joseph Luns responds to Boissevain's two cables regarding Castro's proposal for an agreement with the United States. Luns is wary of Castro's request to use the Boissevain as the mediator, and urges caution and reserve. He asks Boissevain to keep him updated of any future developments, should Castro make a future proposal.

  • July 15, 1963

    Resolution of the Mongolian People’s Revolutionary Party Central Committee [MPRP CC] Politburo on Joining the Warsaw Pact

    The resolution of the Mongolian People's Republic to join the Warsaw Pact. The Politburo specifically cites the treaty between the U.S. and Japan as a threat which made it a necessary decision.

  • July 23, 1963

    Analysis by the Czechoslovak Foreign Ministry of Chinese-Albanian and Chinese-Yugoslav Relations

    This document reviews relations between China and Albania during the 1960s, focusing on political and economic cooperation between the two allies. The author also discusses the relationship between China and Yugoslavia in the 1950s and 1960s. The document shows that Sino-Yugoslav relations have deteriorated due to Chinese criticism of the Albanian brand of Socialism.

  • July 24, 1963

    Letter from Dutch Embassy, Havana (Boissevain), 24 July 1963

    Boissevain reports on Fidel Castro. During a banquet held by the Egyptian ambassador, Castro speaks to Swiss Ambassador Masset of a decision to nationalize the former building of the U.S. embassy, currently in use by the Swiss embassy acting as U.S. representatives. Castro is noted as having "the air of one who is boasting to a trusted friend about how he has crossed an opponent." Boissevain thinks it best to keep on Castro's good side and requests an illustrated work of the Netherlands to be sent as a gesture of goodwill.

  • July 25, 1963

    Cable from the Commercial Attaché, Chinese Embassy in Mali, to the General Bureau for Economic Relations with Foreign Countries

    A coversheet for several reports on Chinese economic assistance to Mali.

  • July 25, 1963

    Work Summary for Training Malinese Agricultural Technical Personnel related to Tea

    A report on Chinese training of Malian experts in the tea industry.

  • July 26, 1963

    [Mao Zedong's] Audience with Cultural, Trade Union, Youth, and Other Delegations from Cuba on June 3rd

    Mao and the visitors from Cuba discuss sending art troupes, books, and films to each other's countries. Later, their conversation shifts to the United States, North Korea, and other topics.

  • August 01, 1963

    Cable from the Chinese Foreign Ministry, 'Our Efforts Against the Subversive Activities of the Soviet Union in Xinjiang'

    Report on Soviet activities in Xinjiang and countermeasures undertaken by the Chinese government.