Final answer:
The main purpose of the anti-apartheid groups in Britain in the 1960s and 70s was to advocate for equal rights for all races in South Africa and South West Africa.
Step-by-step explanation:
The main purpose of the anti-apartheid groups that sprang up in Britain in the 1960s and 70s was to advocate for equal rights for all races in South Africa and South West Africa.
These groups mobilized against the white-minority rule in these regions and worked to raise awareness, provide support, and exert pressure on the governments to dismantle the apartheid system.
Through various actions, including protests, boycotts, and lobbying efforts, these groups played a significant role in contributing to the eventual end of apartheid in South Africa.