Plan Giralda was a British plan for military intervention in Zanzibar following the 1964 revolution. Giralda was intended to be launched if the radical left-wing Umma Party attempted to launch a coup against the government of President Julius Nyerere's newly formed Tanzania. It was the fifth and final British plan for such an eventuality, following Operations Parthenon, Boris, Finery and Shed. Giralda would have required British Army units, Royal Marines and Royal Navy vessels from the Far East to be deployed to Zanzibar if a request was received from Nyerere. Follow on units would be sent after the main assault from the British garrison in Kenya. The operational constraints of sending troops over such long distances, the reluctance of the Kenyan government to weaken the British presence i