League of Nation

During International War I, the League of Nations was established for the sake of world peace and security. It was the world's first multinational organization. All nation-states' territory and sovereignty must be respected by league members. On January 16, 1920, the League of Nations had its inaugural council meeting. By 1920, 48 countries had joined the organization.

The League of Nations, which served as a forerunner to the United Nations, won some battles but had a mixed record of success, placing self-interest before conflict resolution at times and dealing with states who refused to accept its authority. During World War II, the League virtually halted activities. It was successful in resolving several international crises, but it was unable to prevent World War II from breaking out.

Even though President Woodrow Wilson was a proponent of the League, the United States is not a member owing to isolationist opposition in Congress. Isolationists in Congress were concerned that it would unduly involve the US in foreign issues. The General Assembly, which includes members from all member nations, the Executive Council, and the Permanent Court of Justice, which monitors administrative operations, are the institutions of the League of Nations.