(A) President Woodrow Wilson refused to allow the U.S. to join the League of Nations
(B) The Supreme Court ruled that joining the League of Nations would violate the U.S. Constitution
(C) ** Congress voted to keep the U.S. out of the League of Nations
(D) In the election of 1920, American voters voted to keep the U.S. out of the League of Nations
EXPLANATIONS BELOW
Concept note-1: -The United States never joined the League. Most historians hold that the League operated much less effectively without U.S. participation than it would have otherwise. However, even while rejecting membership, the Republican Presidents of the period, and their foreign policy architects, agreed with many of its goals.
Concept note-2: -Overview. The League of Nations was established at the end of World War I as an international peacekeeping organization. Although US President Woodrow Wilson was an enthusiastic proponent of the League, the United States did not officially join the League of Nations due to opposition from isolationists in Congress.
Concept note-3: -Congress did not ratify the treaty, and the United States refused to take part in the League of Nations. Isolationists in Congress feared it would draw the United Sates into international affairs unnecessarily.
Concept note-4: -The League of Nations (1920 – 1946) was the first intergovernmental organization established “to promote international cooperation and to achieve international peace and security”. It is often referred to as the “predecessor” of the United Nations.