The Nyalili Commission had also recommended a transition to a " three-government " federation , with independent state governments for both Zanzibar and the mainland in addition to the unified federal government . This was designed to placate calls for Zanzibari autonomy , although Nyerere opposed it . He argued that there was no evidence it would improve government and that it would waste tax-payer 's money . In 1992 the Zanzibari government joined the Organisation of the Islamic Conference , something Nyerere criticised , arguing that foreign affairs was a federal issue and should not be delegated to the Zanzibari state . In 1993 , 55 mainland parliamentarians called for the establishment of a mainland regional government , which Nyerere attacked in a pamphlet the following year . In 1995 , he gave the '' nyufa '' speech in which he warned of " cracks " in the Tanzanian state caused by corruption , separatism , and tribalism . He expressed concerns about growing mainland chauvinism as a response to Zanzibari separatism and argued that it would develop into tribal resentments and rivalries . In this , he was influenced by the recent events in the Rwandan genocide , during which members of the Hutu majority had turned on the Tutsi minority
Rwandan genocide
Rwandan genocide
Julius Nyerere