Answer:
The League of Nations was not powerful enough to address the aggressiveness of dictators before World War II mainly because it lacked the support of the major world powers, including the United States, which never joined the League. Additionally, many countries were reluctant to take strong action against aggressor nations because they were still recovering from the devastation of World War I and did not want to risk another war. The League also had no real military power to enforce its decisions and was often slow to respond to crises, allowing aggressors to take advantage of the situation.