From the late 19th century, the Colonial Government began imposing various restrictions on the mobility of the pastoralists. The Maasai and other groups, were forced to live within the confines of special reserves.
They could only move within the boundaries of these reserves. In many regions, pastoralists were prohibited from participating in any form of trade, settlers and European colonists saw pastoralists as dangerous and primitive. So, the pastoral community was not allowed to enter the markets in white areas. The chief of the pastoralists appointed by the Colonial Government became wealthy and survived devastations of war and drought. But the poor pastoralists did not have the resource to survive in bad times. They had to take odd jobs like charcoal burners, daily labourers in road and building construction. Thus, it was not really possible for the colonial power to cut off all links with the pastoral community. Even today, 22 million Africans are pastoralists.
While white colonists had to depend on black labour to bore mines, build roads and towns, they had to depend on pastoral community automatically.