Overview
On 14 October 1962 an American U-2 Key term · 1956–1960s U-2 An American high-altitude reconnaissance aircraft. Why it matters U-2 photographs revealed the missile sites in Cuba on 14 October 1962; the shooting down of a U-2 over Cuba on 27 October made that day the most dangerous of the crisis. See in glossary → spy plane photographed Soviet missile sites under construction in Cuba. For thirteen days President Kennedy and Soviet leader Nikita Khrushchev confronted each other in the most dangerous crisis of the Cold War. It ended when Khrushchev agreed to remove the missiles in return for an American pledge not to invade Cuba — and a secret promise to remove US missiles from Turkey.
Key dates
- Jan 1959 Fidel Castro takes power in Cuba.
- Apr 1961 The failed Bay of Pigs Key term · April 1961 Bay of Pigs invasion A failed invasion of Cuba by CIA-trained Cuban exiles, approved by President Kennedy. Why it matters It humiliated Kennedy, pushed Castro closer to the USSR, and convinced Khrushchev and Castro that the USA would try again — a key cause of the missile deployment. See in glossary → invasion by US-backed Cuban exiles.
- 1962 The CIA’s Operation Mongoose Key term · 1961–1962 Operation Mongoose A covert US programme of sabotage and plots against Castro's government in Cuba. Why it matters It reinforced Soviet and Cuban fears of an invasion, which revisionist historians see as a cause of the crisis. See in glossary → ; the USSR secretly deploys missiles and troops to Cuba.
- 16 Oct 1962 Kennedy is shown the U-2 photographs; the ExComm Key term · October 1962 ExComm The Executive Committee of the National Security Council — Kennedy's group of advisers during the crisis. Why it matters Its debates, recorded on tape, show how the US moved from calls for air strikes towards the quarantine and a negotiated settlement. See in glossary → meets.
- 22 Oct 1962 Kennedy announces a naval quarantine Key term · 24 October – 20 November 1962 Quarantine (1962) The US naval blockade of offensive weapons shipments to Cuba, called a "quarantine" to avoid the legal implications of a blockade. Why it matters It showed American resolve without an immediate attack, giving Khrushchev time to choose a peaceful way out. See in glossary → of Cuba.
- 24 Oct 1962 Soviet ships approaching the quarantine line stop or turn back.
- 26 Oct 1962 Khrushchev offers to remove the missiles in return for a no-invasion pledge.
- 27 Oct 1962 “Black Saturday”: a second letter demands the removal of US Jupiter missiles Key term · 1961–1963 Jupiter missiles US medium-range nuclear missiles deployed in Italy and Turkey, within range of the USSR. Why it matters Their secret removal from Turkey was part of the deal that ended the crisis — a concession kept hidden for years. See in glossary → from Turkey; a U-2 is shot down over Cuba.
- 28 Oct 1962 Khrushchev announces that the missiles will be withdrawn.
- 1963 A hotline Key term · from 1963 Hotline A direct communication link between the White House and the Kremlin, set up in 1963. Why it matters The slow exchange of letters during the crisis showed the danger of miscommunication; the hotline was an early step towards managing the Cold War. See in glossary → is set up and the Partial Test Ban Treaty Key term · 1963 Partial Test Ban Treaty An agreement between the USA, the USSR and Britain banning nuclear tests in the atmosphere, in space and under water. Why it matters It was the first arms-control agreement of the Cold War and a sign of improved relations after the missile crisis. See in glossary → is signed.
Why did Khrushchev send the missiles?
- To defend Cuba. After the Bay of Pigs and continuing US efforts to overthrow Castro, Khrushchev feared an American invasion of the USSR’s only ally in the Americas.
- To redress the strategic balance. The USA had far more long-range missiles than the USSR, and US Jupiter missiles in Turkey could reach Soviet cities. Missiles in Cuba were a cheap way to narrow the gap.
- To gain leverage. A stronger position might help over Berlin, where Khrushchev had repeatedly tried to force the Western powers out.
- Prestige. Khrushchev faced criticism at home and from China for weakness towards the West.
The thirteen days
Kennedy’s advisers in the ExComm debated air strikes and invasion. Kennedy chose a naval blockade — called a “quarantine”, since a blockade is an act of war — which gave Khrushchev time to back down.
It shall be the policy of this Nation to regard any nuclear missile launched from Cuba against any nation in the Western Hemisphere as an attack by the Soviet Union on the United States, requiring a full retaliatory response upon the Soviet Union.
Why this quote matters
Kennedy made the danger public and set out a policy of deterrence in the starkest terms, while choosing a measured first step — the quarantine — that left room for negotiation.
When Soviet ships stopped at the quarantine line on 24 October, Secretary of State Dean Rusk remarked: “We’re eyeball to eyeball, and I think the other fellow just blinked.” Quotation · 24 October 1962 Dean Rusk Remark to a colleague during the crisis Why it matters The line captures the idea of brinkmanship — but the crisis was far from over; its most dangerous day was still to come.
Khrushchev’s letter of 26 October showed his fear of where the crisis was heading:
We and you ought not now to pull on the ends of the rope in which you have tied the knot of war, because the more the two of us pull, the tighter that knot will be tied.
Why this quote matters
The private letter reveals a leader looking for a way out. Its offer — missiles out for a no-invasion pledge — became the basis of the settlement, though a harder second letter the next day complicated matters.
On 27 October a U-2 was shot down over Cuba, and a Soviet submarine under attack by US depth charges came close to firing a nuclear torpedo. That evening Robert Kennedy told the Soviet ambassador that the Jupiter missiles in Turkey would be removed if the deal remained secret. Khrushchev accepted the next morning.
Consequences
- A hotline between Washington and Moscow (1963) and the Partial Test Ban Treaty (1963) began a period of cautious cooperation.
- Kennedy’s reputation rose; Khrushchev’s secret gain over Turkey could not be publicised, and he was removed from power in 1964.
- The USSR resolved never again to be so outmatched and launched a massive build-up of nuclear weapons, leading towards mutually assured destruction Key term · 1960s–1980s Mutually assured destruction (MAD) The idea that neither superpower would start a nuclear war because both would be destroyed in the retaliation. Why it matters It underpinned nuclear deterrence and made direct war between the superpowers unthinkable, shifting their rivalry to arms races and proxy conflicts. See in glossary → .
- Castro, excluded from the negotiations, felt betrayed by the USSR.
Historians’ debate
Schlesinger, a Kennedy aide, presented the crisis as a triumph of Kennedy’s cool, measured leadership, which combined firmness with restraint.
Lebow and Stein argued that US threats against Cuba and the deployment of Jupiters in Turkey provoked the crisis, and that the outcome owed as much to Khrushchev’s caution as to Kennedy’s skill.
Using Soviet sources, Fursenko and Naftali showed that the defence of Cuba was a central motive for Khrushchev, alongside the strategic balance.
Test yourself
Why did Kennedy choose a 'quarantine' rather than an air strike? Reveal
An air strike might not destroy every missile and would kill Soviet personnel, risking escalation to nuclear war. A quarantine showed resolve while giving Khrushchev time and a way to back down; calling it a quarantine avoided the language of a blockade, an act of war.
What did each side gain from the settlement? Reveal
The USA had the missiles removed from Cuba. The USSR gained a US pledge not to invade Cuba and the secret removal of Jupiter missiles from Turkey — though it could not publicise the second gain.
How did the crisis change superpower relations? Reveal
Both sides recognised the danger of nuclear war. They set up a hotline and signed the Partial Test Ban Treaty in 1963, beginning a period of cautious cooperation — but the USSR also began a major nuclear build-up.
Key terms
- Bay of Pigs invasion April 1961
-
A failed invasion of Cuba by CIA-trained Cuban exiles, approved by President Kennedy.
Significance: It humiliated Kennedy, pushed Castro closer to the USSR, and convinced Khrushchev and Castro that the USA would try again — a key cause of the missile deployment.
- ExComm October 1962
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The Executive Committee of the National Security Council — Kennedy's group of advisers during the crisis.
Significance: Its debates, recorded on tape, show how the US moved from calls for air strikes towards the quarantine and a negotiated settlement.
- Hotline from 1963
-
A direct communication link between the White House and the Kremlin, set up in 1963.
Significance: The slow exchange of letters during the crisis showed the danger of miscommunication; the hotline was an early step towards managing the Cold War.
- Jupiter missiles 1961–1963
-
US medium-range nuclear missiles deployed in Italy and Turkey, within range of the USSR.
Significance: Their secret removal from Turkey was part of the deal that ended the crisis — a concession kept hidden for years.
- Mutually assured destruction (MAD) 1960s–1980s
-
The idea that neither superpower would start a nuclear war because both would be destroyed in the retaliation.
Significance: It underpinned nuclear deterrence and made direct war between the superpowers unthinkable, shifting their rivalry to arms races and proxy conflicts.
- Operation Mongoose 1961–1962
-
A covert US programme of sabotage and plots against Castro's government in Cuba.
Significance: It reinforced Soviet and Cuban fears of an invasion, which revisionist historians see as a cause of the crisis.
- Partial Test Ban Treaty 1963
-
An agreement between the USA, the USSR and Britain banning nuclear tests in the atmosphere, in space and under water.
Significance: It was the first arms-control agreement of the Cold War and a sign of improved relations after the missile crisis.
- Quarantine (1962) 24 October – 20 November 1962
-
The US naval blockade of offensive weapons shipments to Cuba, called a "quarantine" to avoid the legal implications of a blockade.
Significance: It showed American resolve without an immediate attack, giving Khrushchev time to choose a peaceful way out.
- U-2 1956–1960s
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An American high-altitude reconnaissance aircraft.
Significance: U-2 photographs revealed the missile sites in Cuba on 14 October 1962; the shooting down of a U-2 over Cuba on 27 October made that day the most dangerous of the crisis.