As East African black slaves poured into West Africa, embracing freedom and the civilized world, the East African government did not actually take this minor matter too seriously.
After all, there were more than 800,000 blacks, a large portion of them old, weak, sick, or disabled. They had clearly become a burden rather than wealth, so sending them away suited the East African government's wishes.
As for East Africa's unscrupulous act of driving more than 800,000 blacks into British and French colonies, the East African government did not care in the slightest. At this point, both Upper Volta and the Gold Coast had effectively been left to fend for themselves by France and Britain, which simply had no time to concern themselves with the fate of their West African colonies.
Of course, the influx of 800,000 blacks would not threaten the two countries' colonial rule. The ones who should truly have headaches were the black protectorates and vassal forces within their colonies.
One could imagine that these suddenly appearing 800,000 blacks would inevitably stir up a bloody storm in Upper Volta and the Gold Coast.
After more than twenty years of exploitation and oppression in East Africa, these black slaves had long forgotten the skills needed to survive in the wilderness. The dry rations East Africa issued them could last at most two or three days. After three days, faced with food shortages, the blacks had only two paths to choose from: either seek refuge with local black or colonial forces, or simply go out and loot.
The British and French colonial governments could only stare helplessly. Rations for more than 800,000 blacks were not something they could provide, and even physical extermination was impossible to carry out.
Take France's Upper Volta colony. There were only a few hundred Frenchmen