April 1917: America entered the first World War | Article | The United States Army
World War I Fast Facts | CNN
What Came After World War I for African-American Veterans | Time
World War I: The Writer's War
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What Was World War I? by Nico Medina, Who HQ: 9780593521656 | PenguinRandomHouse.com: Books
World War I in Photos: The Western Front, Part II, and Armistice - The Atlantic
Americans Answer Call to Arms During World War I > U.S. Department of Defense > Defense Department News
100 years ago, the United States enters World War I
United States in World War I - Wikipedia
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An Exclusive Preview of the New World War I Memorial | History | Smithsonian Magazine
The Enduring Impact of World War I - The New York Times
3 important lessons learned from World War I
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World War I | History, Summary, Causes, Combatants, Casualties, Map, & Facts | Britannica
World War 1: A History From Beginning to End (Booklet): Freeman, Henry: 9781534612433: Amazon.com: Books
World War I | History, Summary, Causes, Combatants, Casualties, Map, & Facts | Britannica
World War I: The Question of Blame | Military.com
World War I: The Real Reason the Great War Happened | The National Interest
Why World War I Matters to Today's Economy - The New York Times
World War I: The War That Changed Everything - WSJ
World War I created modern medicine and the welfare state - Big Think
World War I casualties - Wikipedia
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