Across
- 1. World War I started when this man was killed.
- 5. One of the inventions used for the first time.
- 6. This country was blamed for this man's death.
- 10. The war on the Western Front was fought primarily by armies living in ____.
- 12. The ship that was sunk by the Germans.
- 13. Germany and Austria-Hungary were called this nickname.
- 14. The war ended in this month when the Allies forced the Germans to retreat.
- 15. This country entered the war in 1917 because of Germany's attack on their ships.
Down
- 2. Great Britain, France, and Russia were known as this group.
- 3. Russia signed a peace treaty with this country in 1918.
- 4. An agreement among nations to support one another in time of war.
- 7. What continent's map changed after the war?
- 8. The United States send nearly ______ soldiers to fight in World War I.
- 9. At the Battle of Marne, the fighting stopped at this imaginary line that ran from Belgium to the border of Switzerland.
- 11. This imaginary line stretched from the Baltic Sea to the Black Sea.
- 16. One of the inventions used for the first time.