Mariel boatlift

The Mariel boatlift was a mass emigration of Cubans, who traveled from Cuba's Mariel Harbor to the United States between 15 April and 31 October 1980. The term "" (plural "Marielitos") is used to refer to these refugees in both Spanish and English. The boatlift was precipitated by a sharp downturn in the Cuban economy.

After approximately 10,000 Cubans tried to gain asylum by taking refuge on the grounds of the Peruvian embassy, the Cuban government announced that anyone who wanted to leave could do so. The ensuing mass migration was organized by Cuban-Americans with the agreement of Cuban president Fidel Castro. The arrival of the refugees in the U.S. created political problems for U.S. president Jimmy Carter, first when his administration struggled to develop a consistent response to the immigrants and then when it was discovered that a number of the refugees had been released from Cuban jails and mental health facilities. The Mariel boatlift was ended by mutual agreement between the two governments in late October 1980, after as many as 125,000 Cubans had reached Florida.

In the late 1970s, the administration of U.S. President Jimmy Carter sought to improve relations between the U.S. and Cuba. He lifted all restrictions on US travel to Cuba, and in September 1977, Cuba and the U.S. each established an Interest Section in the other's capital. However, relations were still strained because Cuba contributed troops to support the Soviet Union's military interventions in Africa and the Middle East. The two countries struggled to reach agreement on a relaxation of the U.S. embargo on trade to permit the importation of a select list of medicines to Cuba without provoking Carter's political opponents in the U.S. Congress. Ten members of Congress visited Cuba in December 1978, after which the Cuban government released the American manager of a business in Cuba who been prevented from leaving in 1963, accused of being a CIA agent and sentenced to fifty years in prison. A group of 55 people who had been brought from Cuba to the U.S. by their parents returned for three weeks in December 1978, a rare instance of Cuba allowing the return of Cuban-born émigrés. In December 1978 the two countries agreed upon their maritime border and the next month were working on an agreement to improve their communications in the Straits of Florida. The U.S. responded to Cuban relaxation of restrictions on emigration by allowing Cuban-Americans to send up to $500 to an emigrating relative.

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