Which of the following is an American organization founded in the early 1920s to promote international peace?

1. Daughters of the American Revolution

2. American Committee for the Outlawry of War

3. Kellogg-Briand group

4. League of Nations

5. United Nations

League of nations?

Right.

The correct answer is "League of Nations." The League of Nations was an international organization founded in 1920 with the primary goal of promoting international peace and security. Its establishment was a result of the Paris Peace Conference after World War I.

To arrive at this answer, you can eliminate options one, three, four, and five by understanding their respective purposes. The Daughters of the American Revolution is a patriotic lineage organization, focused on preserving American heritage. The Kellogg-Briand group refers to the Kellogg-Briand Pact of 1928, an agreement signed between various nations to renounce war as a means to resolve disputes. The United Nations was founded in 1945 as an international organization aimed at maintaining international peace and cooperation, succeeding the League of Nations.

Now, you are left with option two, the "American Committee for the Outlawry of War." While this organization did exist and played a role in advocating for the abolition of war, it was not founded in the 1920s. Hence, the correct answer is the "League of Nations."