Fidel Castro, leader of Cuba's revolutionary forces, and members of his staff are pictured in the Sierra Maestra mountains on June 7, 1957. From right, Captain Juan Almeida, Captain George Sotus (both seated, right corner), Captain Crescentio Perez, Cuban revolutionary leader Fidel Castro, Captain Raoul Castro, the leader's younger brother (kneeling foreground), Lieutenant Universo Sanchez, Castro's adjutant, Dr. Ernesto "Che" Guevara, official physician of the rebel army and Captain Guillermo Garcia. File photo by UPI | License Photo
Cuban leader Fidel Castro (L) is pictured with revolutionary icon Ernesto "Che" Guevara in a August 2, 1961 file photo in Havana, Cuba. UPI file photo. | License Photo
Fidel Castro (L), leader of the "26th July" revolutionary group which ousted Cuban President Fulgencio Batista, shakes hands with U.S. Vice President Richard Nixon following talks in Washington April 19, 1959. UPI file photo. | License Photo
Fidel Castro is pictured with screen stars Maureen O'Hara (L) and Alec Guinness (R) at Havana's Cathedral Square on May 13, 1959 during visit to set of Columbia Pictures Film "Our Man in Havana," which is on location in Havana. UPI file photo. | License Photo
The Reverend Jesse Jackson (L) shakes hands with Cuban leader Fidel Castro as he arrives in Cuba on June 25, 1984. Jackson will attempt to negotiate the release of prisoners with Castro during his meetings here. UPI file photo. | License Photo
Fidel Castro (R) addressed students at the State Technical University in Santiago on November 29, 1971. UPI file photo. | License Photo
Cuban President Fidel Castro is pictured in this July 26, 1984 file photo during celebrations in Cienfuegos, Cuba marking the 31st anniversary of the start of the Cuban Revolution. UPI file photo. | License Photo
Fidel Castro throws out the first pitch to open a new season of baseball in Havana, Cuba in this April 1960 file photo. UPI file photo. | License Photo
Cuba's Fidel Castro maneuvers around a defender during a November 1971 basketball game between Cuban officials and newsmen in Iquique, Chile. UPI file photo. | License Photo
Fidel Castro is pictured in a January 1959 file photo in Havana, Cuba a few weeks after his triumphant victory over Cuban dictator Fulgencio Batista. UPI file photo. | License Photo
Cuban Premier Fidel Castro is pictured in this November 14, 1971 file photo during a rally at the Hotel Antofagasta in northern Chile. UPI file photo. | License Photo
Fidel Castro is pictured in an undated file photo. UPI file photo. | License Photo
Fidel Castro is pictured with Anastas Mikoyan in Havana in an undated file photo. UPI file photo. | License Photo
Cuban President Fidel Castro (L) is pictured meeting with Nicaragua's then newly-elected President Daniel Ortega is a January 11, 1985 file photo in Timal, Nicaragua. Castro was in Nicaragua to donate materials and labor to help boost Nicaragua's sugar production. UPI file photo. | License Photo
Fidel Castro holds up a photo during a television appearance on June 10, 1962. Castro claims the picture shows a U.S. spy plane on a photo reconnaissance mission over the Soviet freighter "Dolinsk" ten miles off the northern coast of Cuba on May 7, 1962. UPI file photo. | License Photo
Fidel Castro (R) is pictured in an undated file photo. UPI file photo. | License Photo
Fidel Castro holds up a photo during a television appearance on June 10, 1962. Castro claims the picture shows a U.S. spy plane on a photo reconnaissance mission over the Soviet freighter "Dolinsk" ten miles off the northern coast of Cuba on May 7, 1962. UPI file photo. | License Photo
Cuban President Fidel Castro (C), poses with Konstantin Chernenko (L) and Soviet President Leonid Brezhnev (R) in Moscow in a February 26, 1981 file photo. UPI file photo. | License Photo
Fidel Castro (2nd L) is pictured with Soviet Premier Nikita Khrushchev (2nd R) in Moscow on April 30, 1963. Also pictured are Soviet President Leonid Brezhnev (L) and Secretary of the National Leadership of the United Party of Socialist Revolution Emilo A. Navarro (R). UPI file photo. | License Photo
Cuban President Fidel Castro is pictured in a January 11, 1985 file photo in Timal, Nicaragua where he was addressing Sandinista leaders and Cuban workers at Central America's largest sugar plantation. Castro donated materials and labor to the refiniery.. UPI file photo. | License Photo
Fidel Castro (R) and his brother Raul Castro, leader of the Cuban Armed Forces, are pictured in Havana in a February 23, 1977 photo. UPI file photo. | License Photo
Fidel Castro (L) and his brother Raul Castro, leader of the Cuban Armed Forces, are pictured in Havana in a December 21, 1988 photo. UPI file photo. | License Photo
DUR2001090103 - 01 SEPTEMBER 2001 - DURBAN, SOUTH AFRICA: Palestinian Leader Yasser Arafat (R) talks to Cuban President Fidel Castro during The World Conference Against Racism in Durban, South Africa, Friday, August 31, 2001. The Middle East dominated the opening of the world conference against racism Friday as Yasser Arafat accused Israel of "racist practices" against the Palestinian people. HO/UPI file photo | License Photo
Fidel Castro is pictured in an undated file photo. UPI file photo. | License Photo
Fidel Castro is pictured in a February 18, 1976 file photo. UPI file photo. | License Photo
Cuban President Fidel Castro, shown in this file photograph, turned 75 on August 13, 2001. This photograph was taken on December 14, 1995 in Vancouver, Canada. Ruckemann/UPI file photo | License Photo
Fidel Castro meets with the President of France François Hollande during his visit to Havana, Cuba on May 11, 2015. Hollande is France's first head of state to visit Cuba. Photo by Alex Castro/Granma
Fidel Castro meets with Cuba's "five great anti terrorists" in Havana, Cuba on March 2, 2015. Photo by Estudio Revolución/Granma