In summary, the text snippets describe the release of Nelson Mandela from prison in 1990 after 27 years of imprisonment for his anti-apartheid activism. The African National Congress (ANC), led by Mandela, viewed his imprisonment as a strategic move, while Archbishop Desmond Tutu was one of the most vocal advocates for his release. Tutu and Mandela had a close relationship, with Tutu being a bishop and a key figure in the anti-apartheid movement. Tutu was not imprisoned as frequently or for as long as Mandela, but both played significant roles in fighting against apartheid in South Africa. 25 years after his release, Tutu and other leaders reflect on the significance of Mandela's freedom.