Which piece of evidence explains why Bismarck believed that European countries needed to work together? A Bismarck feared that neighboring nations like France and Austria-Hungary might try to destroy Germany. B Bismarck wanted to use different alliances to balance power in Europe. C Russia left the alliance in 1878, so Germany and Austria-Hungary formed the Dual Alliance in 1879. D It stated that the members of the alliance only had to help defend each other, not help each other attack other nations
