The US memorandum of action for national security n°255 describes the conditions for use of the famous 'red telephone', the direct and secure line between the White House in Washington and the Kremlin in Moscow, which would have been used, in the context of the Cold War, to warn of any nuclear attack between the two superpowers.

This document, taken from US archives, sets out the position and the attitude to be adopted by the US President, John F. Kennedy, during his meeting with Nikita Khrushchev, First Secretary of the Communist Party of the Soviet Union, in Vienna on 3 and 4 June 1961.

On 3 and 4 June 1961, in Vienna, the US President, John F. Kennedy, meets Nikita Khrushchev, the First Secretary of the Communist Party of the Soviet Union (CPSU), although this meeting does not end the tension between the two blocs.

Am 3. und 4. Juni 1961 treffen sich der amerikanische Präsident John F. Kennedy und der Erste Sekretär der Kommunistischen Partei der Sowjetunion (KpdSU) Nikita Chruschtschow in Wien in einem Versuch, die Spannungen zwischen den zwei Supermächten zu verringern.

On 25 November 1961, US President, John F. Kennedy, gives an interview to the editor-in-chief of the Soviet newspaper Izvestia. In this interview, the President gives his views on relations between the Soviet Union and the USA, and the crises of the Cold War.

'Khrushchev: the door to negotiations remains open'. In 1962, the cartoonist Fritz Behrendt takes an ironical look at the real will of the Soviet leader, Nikita Khrushchev, to establish dialogue between East and West.

‘The arms race'. In March 1962, in the British Sunday newspaper The Observer, the cartoonist Abu condemns the suicidal arms race between the United States and the Soviet Union.

On 23 October 1968, the Luxembourg Ambassador to Moscow sends a letter to the Luxembourg Foreign Minister, Pierre Grégoire, in which he refers to the risks of a return to the Cold War.