During the National Party rally in Ladysmith, Natal, Prime Minister P.W. Botha assured his party supporters that the proposed constitutional reforms would not lead to the formation of a federal system of government based on a one man, one vote system. Instead, he proposed the establishment of the “Constellation of States” for South Africa's different races. The constellation of states would include South Africa's neighbours and create a buffer zone that would protect the Apartheid government from Umkhonto we Sizwe (MK) attacks. The Frontline States, which quickly implemented their plan to create a regional body for southern African states excluding South Africa, flatly rejected the proposal.
References

Kalley, J. A. et al (1999). Southern African Political History: A Chronology of Key Political Events from Independence to Mid-1997, Greenwood: London, p. 462.