They promoted Africans to identify as African, not as any "clan" or "faction" so that all the different African group's could get along withing the confines of there nations, that where drawn by Europeans to look nice and don't have any historic regard to cultures or ethnic groups.
Most of the African continent is on a high "plateau". Although it is true that African contains the largest desert in the world, the desert itself is not physically "high" in the same sense.
Answer:
Businessmen during the Gilded Age, in the late 19th century, supported relaxed immigration laws because they bring unskilled workers in the country. Industries in the late 19th century, employed immigrants as labors because they reduced the costs of production by paying them less money, which profited the industrialists. The supply of cheap labor was one of the reasons for the growth of industrialization in America.
Nixon appointed Henry Kissinger as special assistant for National Security Affairs and gave him the authority to use diplomacy to end the conflict.