In late September 1960, Savimbi was asked to give a speech in Kampala, Uganda on behalf of the UDEAN (União Democrática dos Estudantes da Africa Negra), a student organization affiliated with the MPLA. At this meeting he met Tom Mboya who took him to Kenya to see Jomo Kenyatta. They both urged him to join the UPA. He told French interviewers “J’ai été convaincu par Kenyatta” ('I was convinced by Kenyatta'). He immediately wrote a letter to Roberto putting himself at his service, which was taken in person to New York by Mboya. Upon his return to Switzerland, Roberto telephoned him. They met in Léopoldville (Kinshasa) in December 1960, and left immediately for America. It was the first of many visits.