Nationalism
Nationalism had an important role in ending the colonial rule. Nationalism spread to colonies and made their people desire independence. Nationalism also made the people in metropolitan states (countries that colonized others) accept more the desire of other people to rule themselves. However nationalists think that the end of colonization of Africa was not done well. They think that there would not be so many conflicts in Africa if African nations had built in a nationalist way (so that every ethnic group is its own nation).