Final answer:
Bismarck organized the Berlin Conference in 1884-85 to establish rules for dividing up Africa among European countries.
Step-by-step explanation:
Bismarck organized the Berlin Conference in 1884-85 to establish rules for dividing up Africa among the European countries. The conference aimed to prevent conflicts and establish regulations for European colonization in Africa. It did not specifically focus on Russian expansion, working with Africans, preventing Belgium from taking over the Congo, or stopping the spread of United States influence in Africa.
Learn more about Berlin Conference