Some Useful Information About Africa and Star Trek
(Note: I'm a white American girl who just has a couple of African history and politics courses under her belt. This post is made mostly because getting these sorts of things wrong throws me right out of the story.)
--> First of all, there are no wars in Africa in this version of the 23rd century. I can't stress that enough. One of the points of Star Trek is that at no time was there any sort of war anywhere in United Earth. If you need casualties for some reason, please, invent a shuttle accident or a natural catastrophe, but not a war in Africa, okay? You're not just missing the point and not doing the research, but you've got some unfortunate implications in there as well.
--> Africa has a few more countries in it that Kenya, South Africa, and Somalia. It's also pretty unlikely that any of those are countries in Star Trek continuity. According to the series bible, Uhura is from somewhere called the United States of Africa; Star Trek's other African character (Geordi LaForge) quasi-canonically comes from Mogadishu, which given previous hard canon is a part of the African Confederation. Either of these countries could have their roots in the modern-day African Union. It's also possible that they're divided much like modern-day Africa is by the UN: between North Africa and Sub-Saharan Africa.
--> In TOS, Uhura's native language is Swahili, and given that her name is Swahili for "star" I don't think that's changed. In modern times, Swahili is a language spoken on the east African coast, from the southern portion of Somalia to the northern portion of Mozambique, buldging in towards the center to reach the Democratic Republic of the Congo. The Swahili word for 'Swahili" is "Kiswahili'. Some notable features in the region include: Lake Nyasa, Lake Tanganyika, Lake Victoria, Laikipia Plateau, the Savanna, Mount Kilimanjaro, and the Congo Rainforest. Some major cities are Nairobi, Lubumbashi, Kampala, and Dar es Salaam.
--> Gene Roddenberry has had Uhura identify as Bantu. I don't quite know what to make of this: Bantu is considered to be a language group, and is also sometimes used as a broad-sweeping term for ethnic groups in Sub-Saharan Africa, who number upwards of 400 and pretty much have living in Sub-Saharan Africa in common and little else. It was briefly used during the early-mid twentieth century by black intellectuals living in South Africa, but was abandoned by the 1970's in favor of "African". Much of pan-African thought today centers around the term "African" as well, although its not entirely unlikely that the term "Bantu" could pass back into use in the next 150 years, especially if it's being used to differentiate between a Sub-Saharan United States of Africa and a North African Confederation. That's just my theory, though, and Uhura as a Bantu has only been referenced in the novels, rather than in hard canon. This is the point that can be disposed of entirely.
tl;dr: More in Africa than war and lions, true today and especially true in Star Trek. Please treat it that way.