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Unit 7: Period 7: 1890–1945

World War I: Military and Diplomacy

Explain why the United States left neutrality for war in 1917, how its troops helped decide 1918, and why the Senate rejected Versailles and the League.

Topic 7.5 · 15 min read

This lesson comes with the AP United States History plan

In this lesson

  1. 01Why neutrality was hard to keep
  2. 02Why the United States entered in April 1917
  3. 03What American soldiers did
  4. 04Wilson's peace and the Senate's answer
  5. 05Worked examples
  6. 06Where students lose points
  7. 07On the exam

The first units’ lessons are free. The plan opens every lesson, every practice question with worked solutions, your study plan and calendar, for $14.49 a month. Cancel any time.

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