Moreover, it is stated that the Herero in rebellion in German South-west Africa sent word to the east coast natives to follow their example, an instance of the growing solidarity of the black races of Africa.
Anxiety was caused on the western frontier during the German campaigns against the Hottentots and Herero (1903-1908), many natives seeking refuge in the protectorate.
After another decade of comparative peace war again broke out (1903) and spread from the Hottentots to the Herero.
Within the eastern and southern Bantu area certain cultural variations occur; beehive huts are found among the ZuluXosa and Herero, giving place among the Bechuana to the cylindrical variety with conical roof, a type which, with few exceptions, extends north to Abyssinia.
The Zulu-Xosa, Bechuana and Herero together form a group which may conveniently be termed " Southern Bantu."