World War One Crossword

2. the 28th U.S. president that was in charge during world war one
5. when one country extends its control over another country or territory to gain economic or political advantages
8. the selective service that chooses who has to join the army to fight
10. the 1919 treaty that ended world war one
11. an agreement nations make to defend and support each other
13. german submarines that terrorized the seas
14. the victim of the spark to world war one
18. this country declared war on austria hungary after it had declared war on serbia
19. this country did not join the war until 1917
20. the ideology that emphasizes loyalty to one group or nation and a belief in its intrests

1. the process of building a strong military to protect yourself or defeat other countries
3. this plan took german armies through belguim
4. the nations that fought against the allies in world war one
6. poison ____ was used during the second battle of ypres
7. the longest battle of the war
9. the largest naval battle
12. the serbian terrorist group that trained gavrilo princip
15. great britain, france, and russia made up the ___ powers
16. temporary suspension of hostility in a war
17. a type of warfare where each side digs long lines in the ground for protection