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Kionga-Triangle in an old German map (lower right side)
|•||1910||1,000 km2 (390 sq mi)|
|Density||4/km2 (10/sq mi)|
|Today part of||Mozambique|
The Kionga Triangle (German: Kionga-Dreieck) was a small area of land on the south-east coast of Africa. It lay between the colonies of German East Africa, the major part of present-day Tanzania, and Portuguese Mozambique, the present-day country of Mozambique.  The triangle was a German possession from 1894 to 1916, after which it became a possession of Portugal.
citation needed] On 9 March 1916 during World War I, Germany declared war on Portugal. The Portuguese military seized the disputed area in April 1916. The post-war Treaty of Versailles reaffirmed that the river was the border between Tanganyika, now under British control, and Portuguese Mozambique. The triangle was the only territory that the treaty awarded to Portugal.[
Since Mozambique became independent on 25 June 1975, the Kionga Triangle has been a part of Cabo Delgado Province.
Postage stamps were issued for Kionga during the German occupation.
- Thomas, H. B., "The Kionga Triangle", Tanganyika Notes and Records Volume 31 1951, pages 47-50.