I read an account of Mozambique capital city after the Portuguese abdicated. The plumbing ceased to function in these high rises so buckets of water would be hauled up 15-20 flights. All that sloshed around dropped water giving you plenty of chances to break your neck on the stairs for everyone. Plus no more gas piped upstairs so people would build cooking fires in these high rises. I suppose haul propane tanks up the stairs but wood too sometimes
I think the first Europeans to stay in South Africa were Portuguese Sailors who were ship wrecked off the Cape. They mixed with the small numbers of native Hottentots, eventually becoming what was later called “The Cape Coloreds”.
The Boers first came to the Cape but quickly moved out and eventually due to conflicts with the English, made treks into the totally deserted Veldt of the inner areas.
Not long afterwards Black tribes from the North began to be pushed South by other Blacks. These were the Zulus and other Bantu tribes. After some conflicts in which the Boers were winners, the Zulus and Boers got along fine.
The Blacks never forced the White South Africans to surrender. It was a total world blockade sponsored by Communist countries and also by European and American countries.