2/ As with many African countries colonized by European powers (in this case Germany 🇩🇪), 🇳🇦 Namibia’s contemporary borders are characterized by artificially straight lines that don't necessarily relate to the local geology. This site walks through the history of each border line and the various treaties between the respective powers:  https://atlasofnamibia.online/chapter-1/international-boundaries #geoweirdness