According to Leroy Beaulieu, barbarian tribes and savages inhabit the fourth part of the world, which is regarded as the greatest portion of the world. Some of these people have surrendered to unending wars and brutal customs. Others have little knowledge of arts and they are not accustomed to work and inventions. Therefore, the barbarian tribes can barely exploit their natural resources. The people of the fourth part of the world live in small, and impoverished groups scattered in vast territories, which could nourish many people with ease. Their situation prompts the civilized people to intervene in the fourth world’s affairs.