What were the effects of U.S. involvement in World War I?

Armistice Day celebrations (November 11, 1918) U.S. involvement in WWI greatly aided the Allies war effort and helped them win WWI. Armistice Day celebrations (November 11, 1918)

During WWI, many women helped gain support for suffrage by working in wartime industries.

As a result, the 19th Amendment was ratified in 1920 to give women the right to vote.

During and after WWI, African Americans migrated to the North as a result of the availability of new factory jobs.

After WWI, President Woodrow Wilson proposed the Fourteen Points, which was a post-war plan for establishing world peace. Post-war Europe (1919)

One principle of the Fourteen Points was the creation of an international peace organization called the League of Nations.

The creation of the League of Nations was included in the Treaty of Versailles, which officially ended WWI. Signing the Treaty of Versailles (June 28, 1919)

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Many U. S. senators opposed the U. S Many U.S. senators opposed the U.S. joining the League of Nations, arguing that it would lead to U.S. involvement in future foreign conflicts.

As a result, the U.S. Senate refused to ratify the Treaty of Versailles.