After the 1995 elections, the United Nations asked Nyerere to step in as a mediator to help end the Burundian Civil War. In 1996 the Mwalimu Nyerere Foundation was established though which the negotiations could take place; it was modelled on the U.S. Carter Center. That year, he oversaw two negotiation sessions between competing factions in Mwanza, with additional sessions in Arusha in 1998 and 1999. Nyerere was adamant that a resolution for peace should arise from a regional initiative rather than one brought forth by the Western powers. He insisted on a process of inclusivity, with even the smallest political groups being invited to take part in the negotiation process, and also emphasised the construction of civilian political institutions as key to a lasting peace in Burundi. The negotiations would continue until Nyerere's death, at which his role was taken on by former President of South Africa Nelson Mandela. In 1997, he made his final visit to Edinburgh, delivering the Lothian European Lecture and teaching seminars at the university's Centre of African Studies. The government and army contributed funds to build Nyerere a house in his home village; it was finished in 1999, although he only spent two weeks there prior to his death.