Across
- 5. Big guns that boomed across the battlefield
- 6. Sneaky German submarine with torpedoes
- 9. Teenager who started a world war
- 11. President with a "14-Point" peace plan
- 14. Agreement between nations for mutual support
- 15. Ship sank fast, making the U.S. very mad
- 19. Country’s troops punched above their weight
- 21. Women got this in many Western nations themselves
- 22. Big balloon dropped bombs before planes
Down
- 1. Nickname for American soldiers in WWI
- 2. Name of the archduke whose death sparked war
- 3. Killed more people than the war itself
- 4. Peace treaty signed, but peace didn’t last
- 7. Spiky problem for soldiers crossing No Man’s Land
- 8. German leader with a famous mustache
- 10. Metal beasts rolled into battle for the first time
- 12. Deadliest real estate between trenches
- 13. City where a single gunshot changed history
- 16. Nasty surprise for soldiers standing in water too long
- 17. Ceasefire that ended the fighting
- 18. Weapon that stung eyes and burned lungs
- 20. Place where gas first clouded battlefields