After the banning of the ANC, the organisation decided it would be better for Mbeki to go into exile. In 1962, Mbeki and a group of comrades left South Africa disguised as a football team. They travelled in a minibus to Botswana and flew from there to Tanzania, where Mbeki accompanied Kenneth Kaunda, who later became Zambia's post-independence president, to London. Mbeki stayed with Oliver Tambo, who would later be elected the longest serving president of the ANC in the absence of the jailed Rivonia trialists. Mbeki worked part-time with Tambo and Yusuf Dadoo while studying economics at Sussex University in the coastal town of Brighton. At one stage, Mbeki shared a flat with two other students, Mike Yates and Derek Gunby. Together the trio would become firm friends and frequent a local bar when they were not discussing politics and listening to music. It was here that Mbeki developed a deep love for Brecht and Shakespeare and an appreciation of Yeats. He also came to love the blues. In February 1963, three months after his arrival at the University, Mbeki was elected onto the Student Union Committee. By April, he was one of 28 signatories petitioning in support of "Spies for Peace", a document that revealed secret information about Britain's plans for civil defence and government in the event of a nuclear attack.