The correct answer is a relatively small tribe of the Bantu people
The Zulu are people who live in what is now South Africa, Lesotho, Swaziland, Zimbabwe and Mozambique. In the past, they maintained forms of survival based on wars. They fought, for example, against the invasion of the British and Boer peoples, even in the 20th century. Nowadays, political power within the tribe works in a restricted way.
The Zulus, formerly, were a clan founded by Zulu kaNtombhela. Thus, when Chaka, in 1816, became head of the tripo, the orders were for the power to expand to other tribes and clans. Thus, the Zulu Empire was formed.
However, the tribe did not have an army, let alone weapons and war power. Thus, as leader of the clan, Chaka organized ways to train and arm the warriors of the tribe. Among the armaments made for the fighting were large shields produced from layers of cow hair. After training that included stepping on thorns, the warriors were ready for the clashes.
Thus, the Zulus became quick and silent in their attacks, taking enemies by surprise. However, the strength acquired by the tribe was not sufficient to face the Dutch and English. Thus, in 1887, the Zulu people were dominated by the British who invaded Zululand.