[h=3]STRAINED U.S.-CUBA RELATIONS THROUGH THE YEARS [/h]1898: U.S. wins the Spanish-American war, forcing Spain to cede control over Cuba
1902: Cuba becomes independent but the island remains under US protection and Congress retains the right to intervene in the nation's affairs
1934: After a coup led by Sergeant Fulgencio Batista, the U.S. relinquishes its right to intervene in Cuba and alters its tariff structure to favor Cuba's economy
1958: The US pulls its military aid to Batista following two years of guerrilla warfare waged by leftist rebels Fidel Castro and Che Guevara
1959: Castro leads 9,000 guerrillas into Havana and deposes Batista, later meeting with then-Vice President Richard Nixon in Washington
1960: U.S. breaks off diplomatic relations with Havana and imposes a trade embargo after Castro 'nationalizes' all U.S. businesses operating in Cuba without any compensation
1961: Castro proclaims Cuba a communist nation and allies with the Soviet Union, shortly after the U.S. backs Cuban exiles who aimed, but failed, to invade Cuba at the Bay of Pigs
1961-63: The CIA draws up at least five separate plans to assassinate Castro
1962: Castro lets the Soviet Union deploy nuclear missiles in Cuba, pointed at the U.S., and the U.S. releases photos of the missile silos; the 'Cuban missile crisis' was resolved when the USSR dismantled the missiles in exchange for the withdrawal of American nuclear missiles from Turkey
1980: Around 125,000 Cubans in the 'Mariel boatlift' – a large number of them convicts released from Cuban jails – flee to the US, when Castro temporarily lifts restrictions on travel
1996: U.S. makes its trade embargo permanent after Cuba shoots down two American aircraft operated by Cuban exiles based in Miami
2001: Five Cubans are given long sentences in the U.S. for spying for the Cuban government, including one who conspired to bring down the planes in 1996
2001: The Bush administration exports food to Cuba for the first time in more than four decades, following Havana's plea for help after Hurricane Michelle
2002: U.S. Under Secretary of State John Bolton, later America's UN Reresentative, accuses Cuba of trying to develop biological weapons
2002: Former President Jimmy Carter tours scientific facilities in Cuba, making him the first former or current U.S. president to visit the country in more than 40 years
2003: President George W. Bush tightens Cuban travel embargo and creates the Commission for Assistance to a Free Cuba
2006: Fidel Castro, in failing health, hands over power to his brother Raul
2006: The U.S. sends a 10-member bipartisan delegation from Congress to Cuba, but Raul Castro refuses to meet with them
2009: Barack Obama lifts restrictions on family travel and cash transfers to Cuba by family members
2009: Alan Gross is jailed in Cuba, accused of spying for Washington just days before the New Year
2014: Gross is released in exchange for the three remaining 'Cuban Five' prisoners, and the Obama administration announces plans to 'normalize' relations with Havana