7.10 Postwar Diplomacy

Wilson's Vision vs. Reality

President Woodrow Wilson proposed the Fourteen Points, calling for free trade, self-determination, and a League of Nations to prevent future wars. At the Paris Peace Conference, Allied leaders rejected most points, instead imposing the harsh Treaty of Versailles on Germany, which included heavy reparations and war guilt.

The Senate Rejects the League

Wilson's push for the League of Nations faced fierce opposition from isolationist senators, especially Henry Cabot Lodge and the Irreconcilables, who feared losing U.S. sovereignty over foreign wars. The Senate rejected the Treaty of Versailles twice, keeping the U.S. out of the League and signaling a return to isolationism.

Interwar Diplomacy and Isolationism

The 1920s U.S. pursued limited international cooperation without binding alliances: the Washington Naval Conference limited naval armaments, and the Kellogg-Briand Pact (1928) renounced war as a policy tool but had no enforcement mechanism. These efforts reflected a broader trend of economic internationalism paired with political isolationism.

Key terms

Fourteen Points

Wilson's plan for postwar peace, including self-determination, free trade, and a League of Nations.

Treaty of Versailles

1919 treaty ending WWI; imposed harsh reparations and blame on Germany, rejected by the U.S. Senate.

League of Nations

International organization proposed by Wilson to maintain peace; the U.S. never joined.

Irreconcilables

Senators who absolutely opposed U.S. membership in the League of Nations under any conditions.

Kellogg-Briand Pact

1928 agreement renouncing war as a policy tool, but with no enforcement mechanism.

Try an AP-style question

The United Nations was founded in 1945 to…

1. govern defeated Germany by itself
2. promote international peace and cooperation
3. replace the U.S. Congress as lawmaker
4. take control of every atomic bomb