An army has to be trained, disciplined, and organized so that it is a meaningful unit in peace and in war. - Walter Rodney

As John Stuart Mill said, the trade between England and the in the eighteenth century was like the trade between town and country. In the present century, the links are even closer and it is more marked that the town (Europe) is living off the countryside (Africa, Asia, and Latin America). When it said that colonies should exist for the metropoles by producing raw materials and buying manufactured goods, the underlying theory was to introduce an international division of labor covering working people everywhere. That is to say, up to that point each society had allocated to its own members particular functions in production—some hunted, some made clothes, some built houses. But with colonialism, the capitalists determined what types of labor the workers should carry on in the world at large. Africans were to dig minerals out of the subsoil, grow agricultural crops, collect natural products, and perform a number of other odds and ends such as bicycle repairing. Inside Europe, North America, and Japan, workers would refine the minerals and the raw materials and make the bicycles.

There was nothing "natural" about monoculture. It was a consequence of imperialist requirements and machinations, extending into areas that were politically independent in name. Monoculture was a characteristic of regions falling under imperialist domination. Certain countries in Latin America such as Costa Rica and Guatemala were forced by United States capitalist firms to concentrate so heavily on growing bananas that they were contemptuously known as “banana republics.” In Africa, this concentration on one or two cash crops for sale abroad had many harmful effects. Sometimes, cash crops were grown to the exclusion of staple foods—thus causing famines. For instance, in Gambia rice farming was popular before the colonial era, but so much of the best land was transferred to groundnuts that rice had to be imported on a large scale to try to counter the fact that famine was becoming endemic. In Asante, concentration on cocoa raised fears of famine in a region previously famous for yams and other foodstuff. Yet the threat of famine was a small disadvantage compared to the extreme vulnerability and insecurity of monoculture. When the crop was affected by internal factors such as disease, that amounted to an overwhelming disaster, as in the case of Gold Coast cocoa when it was hit by swollen-shoot disease in the 1940s. Besides, at all times, the price fluctuations (which were externally controlled) left the African producer helpless in the face of capitalist maneuvers.

It would be extremely simple-minded to say that colonialism in Africa or anywhere else caused Europe to develop its science and technology. The tendency towards technological innovation and renovation was inherent in capitalism itself, because of the drive for profits. However, it would be entirely accurate to say that the colonization of Africa and other parts of the world formed an indispensable link in a chain of events which made possible the technological transformation of the base of European capitalism. Without that link, European capitalism would not have been producing goods and services at the level attained in 1960. In other words, our very yardsticks for measuring developed and underdeveloped nations would have been different.