South African rule

On 17 December 1920, South Africa undertook administration of South West Africa under the terms of Article 22 of the Covenant of the League of Nations and a Class C Mandate agreement by the League Council. The Class C mandate, supposed to be used for the least developed territories, gave South Africa full power of administration and legislation over the territory, but required that South Africa promote the material and moral well-being and social progress of the people.

The League's supersession by the United Nations in 1946, South Africa refused to surrender its earlier mandate to be replaced by a United Nations Trusteeship agreement, requiring closer international monitoring of the territory's administration. Although the South African government wanted to incorporate South West Africa into its territory, it never officially did so, although it was administered as the de facto 'fifth province', with the white minority having representation in the whites-only Parliament of South Africa. In 1959, the colonial forces in Windhoek sought to remove black residents further away from the white area of town. The residents protested and the subsequent killing of eleven protesters spawned a major Namibian nationalist following and the formation of united black opposition to South African rule.