Cuban President Fidel Castro (right) and African leader Nelson Mandela (left) gesture during the celebration of the "Day of the Revolution" in Matanzas Saturday, July 27, 1991. Photo: Alejandro Balaguer/AP/file photo.

Cuban President Fidel Castro (right) and African leader Nelson Mandela (left) gesture during the celebration of the "Day of the Revolution" in Matanzas Saturday, July 27, 1991. Photo: Alejandro Balaguer/AP/file photo.

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