Across
- 3. This along with machine guns were the deadliest weapons of the war.
- 6. Disease that killed 20 million people starting in 1918.
- 7. Air battles were known as this.
- 8. Town on the Marne River northeast of Paris.
- 10. Pilot who shot down five or more enemy aircraft.
Down
- 1. Line of trenches constructed by Germans.
- 2. Rocky, hilly region northwest of Saint-Mihiel.
- 4. Armored, trucklike vehicle that ran on treads.
- 5. Wedge shaped salient on the Western Front.
- 9. America greatest fighter pilot.