The Battle of Blood River, which took place on December 16, 1838, was fought between the Boers, who were Dutch-speaking settlers in South Africa, and the Zulus, a powerful indigenous group in the region. The Boers, led by Andries Pretorius, were a part of the Great Trek, which was a movement of settlers who left the Cape Colony in search of land and independence.
The Zulus were a dominant military power in the area under the leadership of their king, Dingane. Conflict arose due to tensions over land and resources as the Boers encroached on territories traditionally inhabited by the Zulus. The battle was notable for the use of laager tactics by the Boers, who formed a defensive circle with their wagons to fend off the Zulu warriors.
The Boers' strategic formation and superior firepower led to their victory. The event is considered significant in South African history, as it marked a turning point in the country's colonial dynamics, with the Boers gaining influence and territory.
Thus, the indigenous group involved in the Battle of Blood River with the Boers was the Zulus.