As early as two months before the treaty was signed, Kapulivi had already returned to Germany, since as the Prime Minister of the Empire, it was impossible to stay abroad for too long, especially given how far East Africa is from Germany.
European leaders generally travel within Europe, which isn't too far, similar to how Confucius traveled around various states but was essentially within the Central Plains region.
Many European countries placed in East Africa are actually equivalent to provinces or cities in terms of size. Of course, there are large countries like Tsarist Russia, with its vast domestic areas, and colonial powers like the United Kingdom and France, with extensive overseas colonial territories.
