1. Who was president of the United States during World War I?

2. Around how long after World War I began did the United States declare war on Germany?

3. What was the Lusitania?

4. What event was the final straw that forced the U.S. to enter World War I?

5. What year did the United States enter World War I?

6. True or False: The United States entering the war tipped the balance in favor of the Allies and helped to defeat Germany.

7. What did Germany promise Mexico if they would ally against the United States?

8. Around how many U.S. soldiers were involved in World War I?

9. What was the name of President Wilson's plans for peace and goals of the United States in the war?

10. Who was the general who commanded the United States military in World War I?