The Heligoland–Zanzibar Treaty was an agreement signed on 1 July 1890 between Germany and the United Kingdom.

The Caprivi Strip, also known simply as Caprivi, is a geographic salient protruding from the northeastern corner of Namibia. It is bordered by Botswana to the south and Angola and Zambia to the north. Namibia, Botswana and Zambia meet at a single point at the eastern tip of the Strip, which also comes within 150 m (490 ft) of Zimbabwe thus nearly forming a quadripoint.