Gukurahundi is a Shona phrase and is often used to label the campaign by an independent Zimbabwe, led by Robert Mugabe, between 1983-1987 against rebels from the Ndebele in western Zimbabwe. A campaign where the North Korean-trained Fifth Brigade killed between 8-20k and aroused eventually IRRC condemnation within and beyond Zimbabwe.

There is a new book on this period in Zimbabwe's early history, by Dr Stuart Doran, 'Kingdom, power, glory:Mugabe, Zanu and the quest for supremacy 1960-1987'.

From the South Africa-based publisher's website:
This groundbreaking book charts the development of an intense rivalry between two nationalist parties—Robert Mugabe’s Zanu and Joshua Nkomo’s Zapu—and reveals how Zanu’s victory in the elections of 1980 was followed by a carefully orchestrated five-year plan, driven by Mugabe, which sought to smash all forms of political opposition and impose a one-party state.
Doran shows not only what happened during Zimbabwe’s darkest chapter, but why—and why it still matters. In an expansive narrative saturated with new findings, he documents a culture of political intolerance in which domination and subjugation became the only options, and traces the rise of those who became (and, in many cases, remain) the key proponents of this supremacist ideology.

There are no Amazon entries for the book; nor on Google yet.