31 Battalion was a light infantry battalion in the South African Army and in later years became part of the SWATF. The battalion consisted of men recruited from the hunter-gatherer San people. It was later called 201 Battalion.

The South West Africa Territorial Force (SWATF) was an auxiliary arm of the South African Defence Force (SADF) and comprised the armed forces of South West Africa from 1977 to 1989. It emerged as a product of South Africa's political control of the territory which was granted to the former as a League of Nations mandate following World War I.