Across
- 2. A formal agreement to end a war
- 5. Long, narrow ditches
- 7. German submarines used to attack enemy ships
- 9. An agreement to stop fighting
- 10. Treaty that officially ended WW1
- 11. U.S president during WW1
- 12. Cutting of supplies to a place by sea or land
- 14. Limiting use of food and goods to support troops
- 15. A British ship sunk by a German U-boat in 1915
Down
- 1. Neither side can move up, they're stuck
- 3. Dangerous area between enemy trenches
- 4. Posters and media used to influence public opinion
- 6. Rapid fire weapon that changed how battles were fought
- 8. Secret German message to Mexico
- 13. Group of nations including the U.S,Britain and France