evidence: The border between Namibia and South Africa is 967 kilometres (601 mi) long.[1] It runs along the Orange River from its mouth on the Atlantic Ocean to the 20th meridian east, and then northwards along that meridian to the tripoint with Botswana at the Nossob River.[2] History [edit]European settlement at the Cape began with the Dutch East India company in 1652, and was taken over by Britain at the start of the 19th century. In 1847, the boundaries of the Cape Colony were expanded as far as the Orange River. In 1878 Walvis Bay, the only natural harbour on the coast of what is now Namibia, was annexed as an exclave of the Cape Colony. German settlement in Namibia, meanwhile, began in 1883 with the founding of Lüderitz. The colony of German South-West Africa was formally established in 1884. [...] Dispute [edit]South Africa claims, on the basis of the 1890 treaty, that the border runs along the north bank of the Orange River. Namibia claims that it follows the middle of the river. The Constitution of Namibia explicitly claims the territory up to the middle of the river, while South Africa's Recognition of the Independence of Namibia Act denies any recognition of this claim.