French is mainly spoken in African countries which were once French colonies. Soem of these include: Cameroon, Chad, Congo, Cote d'Ivoire, Guinea, Mali, Niger, Senegal, Djibouti, Gabon, Madagascar,...
The Berlin Conference of 1884-85 regulated European colonization and trade in Africa during the New Imperialism period, and coincided with Germany's sudden emergence as an imperial power.