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The thirteen-day confrontation in October 1962 between the United States and Soviet Union over Soviet nuclear missiles in Cuba, widely considered the closest the Cold War came to direct nuclear conflict. It was resolved through a combination of public US blockade and secret American concessions.

In October 1962, American U-2 reconnaissance aircraft photographed Soviet medium-range ballistic missile launch sites under construction in Cuba. President Kennedy convened a secret executive committee, considered options ranging from an immediate air strike to diplomatic negotiation, and chose a naval ‘quarantine’ of Cuba to prevent further Soviet deliveries while demanding the missiles’ removal. Soviet Premier Khrushchev publicly defied the demand, and for thirteen days both sides manoeuvred at the edge of a war that could have killed hundreds of millions of people. The resolution involved a public Soviet commitment to remove the missiles in exchange for an American pledge not to invade Cuba, combined with a secret American commitment to remove Jupiter missiles from Turkey within six months — concessions the Kennedy administration concealed because they amounted to a partial Soviet victory. The most dangerous moment came when an American U-2 was shot down over Cuba by a Soviet-operated missile and a Soviet submarine under depth-charge attack nearly launched a nuclear torpedo, the firing of which was blocked by a single officer, Vasili Arkhipov. The crisis led directly to the establishment of the Moscow-Washington hotline and the 1963 Partial Nuclear Test Ban Treaty — the first arms control agreements of the Cold War.

The Cuban Missile Crisis has been mythologised as a triumph of American resolve, and in some respects it was: Kennedy’s refusal to accept the missiles while keeping the naval blockade below the threshold of direct attack gave Khrushchev the space to retreat. But the resolution was more ambiguous than the mythology admits. The secret concessions on Turkey meant that Khrushchev achieved something real — the removal of missiles that threatened Soviet territory — while being forced to accept a humiliation in public. His overthrow by the Soviet Politburo two years later was partly a consequence of this humiliation. The more sobering lesson of the crisis is not that cool heads prevailed but that the outcome depended substantially on luck: the Arkhipov incident suggests that nuclear war was averted not by the wisdom of decision-makers but by the judgment of a single Soviet officer in a submarine that Washington did not know was armed with a nuclear weapon.

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