The Cuban Missile Crisis, also known as the October Crisis in Cuba (Spanish: Crisis de Octubre), or the Caribbean Crisis (Russian: Карибский кризис, romanized: Karibskiy krizis), was a 13-day confrontation between the governments of the United States and the Soviet Union, when American deployments of nuclear missiles in the United Kingdom, Italy and Turkey were matched by Soviet deployments of nuclear missiles in Cuba. The crisis lasted from 16 to 28 October 1962. The confrontation is widely considered the closest the Cold War came to escalating into full-scale nuclear war.
In 1959, the US government deployed Thor nuclear missiles in England, an initiative known as Project Emily. In 1961 the US put Jupiter nuclear missiles in Italy and Turkey. All were within range of Moscow. The US had also trained a paramilitary force of Cuban expatriates, for a CIA-led attempt to invade Cuba and overthrow its government in April 1961. Starting in November of that year, the US government engaged in a violent campaign of terrorism and sabotage in Cuba, referred to as the Cuban Project, which continued throughout the first half of the 1960s. The Soviet administration was concerned about a Cuban drift towards China, with which the Soviets had an increasingly strained relationship. In response to these factors the Soviet and Cuban governments agreed, at a meeting between leaders Nikita Khrushchev and Fidel Castro in July 1962, to place nuclear missiles on Cuba to deter a future US invasion. Construction of launch facilities started shortly thereafter.
A U-2 spy plane captured photographic evidence of medium- and long-range launch facilities in October. US president John F. Kennedy convened a meeting of the National Security Council and other key advisers, forming the Executive Committee of the National Security Council (EXCOMM). Kennedy was advised to carry out an air strike on Cuban soil in order to compromise Soviet missile supplies, followed by an invasion of the Cuban mainland. He chose a less aggressive course in order to avoid a declaration of war. On 22 October, Kennedy ordered a naval blockade to prevent further missiles from reaching Cuba. He referred to the blockade as a "quarantine", not as a blockade, so the US could avoid the formal implications of a state of war.
An agreement was eventually reached between Kennedy and Khrushchev. The Soviets would dismantle their offensive weapons in Cuba, subject to United Nations verification, in exchange for a US public declaration and agreement not to invade Cuba again. The United States secretly agreed to dismantle all of the offensive weapons it had deployed to Turkey. All Thors in the UK were disbanded by August 1963. While the Soviets dismantled their missiles, some Soviet bombers remained in Cuba, and the United States kept the naval quarantine in place until 20 November 1962. The blockade was formally ended on 20 November after all offensive missiles and bombers had been withdrawn from Cuba. The evident necessity of a quick and direct communication line between the two powers resulted in the Moscow–Washington hotline. A series of agreements later reduced US–Soviet tensions for several years.
The compromise embarrassed Khrushchev and the Soviet Union because the withdrawal of US missiles from Italy and Turkey was a secret deal between Kennedy and Khrushchev, and the Soviets were seen as retreating from a situation that they had started. Khrushchev's fall from power two years later was in part because of the Soviet Politburo's embarrassment at both Khrushchev's eventual concessions to the US and his ineptitude in precipitating the crisis. According to the Soviet ambassador to the United States, Anatoly Dobrynin, the top Soviet leadership took the Cuban outcome as "a blow to its prestige bordering on humiliation".
In late 1961, Fidel Castro asked for more SA-2 anti-aircraft missiles from the Soviet Union. The request was not acted upon by the Soviet leadership. In the interval, Castro began criticizing the Soviets for lack of "revolutionary boldness", and began talking to China about agreements for economic assistance. In March 1962, Castro ordered the ousting of Anibal Escalante and his pro-Moscow comrades from Cuba's Integrated Revolutionary Organizations. This affair alarmed the Soviet leadership and raised fears of a possible US invasion. As a result, the Soviet Union sent more SA-2 anti-aircraft missiles in April, as well as a regiment of regular Soviet troops.
Historian Timothy Naftali writes that Escalante's dismissal was a motivating factor behind the Soviet decision to place nuclear missiles in Cuba in 1962. According to Naftali, Soviet foreign policy planners were concerned that Castro's break with Escalante foreshadowed a Cuban drift toward China, and they sought to solidify the Soviet-Cuban relationship through the missile basing program.
The Cuban government regarded US imperialism as the primary explanation for the island's structural weaknesses. The US government had provided weapons, money, and its authority to the military dictatorship of Fulgencio Batista that ruled Cuba until 1958. The majority of the Cuban population were tired of the severe socioeconomic problems associated with the US domination of the country. The Cuban government was thus aware of the necessity of ending the turmoil and incongruities of US-dominated prerevolution Cuban society. It determined that the US government's demands, part of their hostile reaction to Cuban government policy, were unacceptable.
With the end of World War II and the start of the Cold War, the US government sought to promote private enterprise as an instrument for advancing US strategic interests in the developing world. It had grown concerned about the expansion of communism.
In December 1959, under the Eisenhower administration and less than twelve months after the Cuban Revolution, the Central Intelligence Agency (CIA) developed a plan for paramilitary action against Cuba. The CIA recruited operatives on the island to carry out terrorism and sabotage, kill civilians, and cause economic damage. At the initiative of the CIA Deputy Director for Plans, Richard Bissell, and approved by the new President John F. Kennedy, the US launched the attempted Bay of Pigs Invasion in April 1961 using CIA-trained forces of Cuban expatriates. The complete failure of the invasion, and the exposure of the US government's role before the operation began, was a source of diplomatic embarrassment for the Kennedy administration. Former President Eisenhower told Kennedy that "the failure of the Bay of Pigs will embolden the Soviets to do something that they would otherwise not do."
Following the failed invasion, the US massively escalated its sponsorship of terrorism against Cuba. Starting in late 1961, using the military and the CIA, the US government engaged in an extensive campaign of terrorism against civilian and military targets on the island. The terrorist attacks killed significant numbers of civilians. The US armed, trained, funded and directed the terrorists, most of whom were Cuban expatriates. Terrorist attacks were planned at the direction, and with the participation, of US government employees and launched from US territory. The attacks would continue through 1965. In January 1962, US Air Force General Edward Lansdale described the plans to overthrow the Cuban government in a top-secret report, addressed to Kennedy and officials involved with Operation Mongoose. CIA agents or "pathfinders" from the Special Activities Division were to be infiltrated into Cuba to carry out sabotage and organization, including radio broadcasts. In February 1962, the US launched an embargo against Cuba, and Lansdale presented a 26-page, top-secret timetable for implementation of the overthrow of the Cuban government, mandating guerrilla operations to begin in August and September. "Open revolt and overthrow of the Communist regime" was hoped by the planners to occur in the first two weeks of October.