Mobutu Sese Seko and William Tolbert

President of Zaire Mobutu Sese Seko and President of Liberia William Tolbert, at the Organization of African Unity (OAU) Summit in Kampala, 1976. Kenya's renowned photojournalist Mohamed Amin, also known as 'Six Camera Mo' captured some of Africa's defining moments and photographed almost every African leader in the 20th century.