Across
- 2. President of the US during WWI
- 6. A long ditch dug by soldiers for cover
- 8. Ship that can dive underwater
- 10. An agreement or contract between countries
- 11. Information spread to influence opinion
- 12. Germany, Austria-Hungary, and the Ottoman Empire
- 13. A national policy of revenge
Down
- 1. A country at war
- 3. When neither side can win a war
- 4. The belief in having a strong military
- 5. Assassinated archduke
- 7. Russia, France, and Great Britain
- 9. Policy that means staying out of other countries' affairs