Archive category Speeches and Public Statements Published date 14/10/2011 Last updated 14/10/2011 Related Collections from the Archive Speech by Oliver Tambo on behalf of the Liberation Movements, at the twenty-third session of the assembly of Heads of State and Government of the Organisation of African Unity, Addis Ababa, 27 July 1987Sourcehttps://www.anc.org.za/show.php?id=4536