Dr Kenneth Kaunda and Mengistu Haile Mariam

Zambian President Dr Kenneth Kaunda is greeted by Ethiopian Mengistu Haile Mariam upon his arrival at the 23rd Organisation of African Unity (OAU) Summit Meeting in Addis Ababa. 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.