Across
- 1. Expanding your power outside of one's own borders; one of the MAIN causes of WWI.
- 4. German submarines; a new weapon of the war; convoys were used to stop them.
- 5. Mutual defensive treaty; one of the MAIN causes of WWI.
- 7. Part of the Central Powers; spent most on army & navy than any other European country; declared war on Russia first; received total blame for the war.
- 9. Area between the trenches in World War I, filled with barbed wire.
- 11. Message proposing an alliance between Germany and Mexico; one of the reasons the US joins the war.
- 15. Warfare
- 16. bombers that could level buildings in seconds
- 18. STUDY
- 19. Part of the Central Powers; had many different nationalities within country all wanting their own nation.
- 21. guns
- 23. Alliance consisted of Germany, Austria-Hungary, and the Ottoman Empire
- 24. Part of the Allies; Battle of the Somme and Battle of the Marne took place in this country.
- 25. war from inside trenches enemies would try killing each other with machine guns, tanks, and poison gas.
- 26. Loyalty, patriotism, and desire by common people to have own homeland; one of the MAIN causes of WWI.
Down
- 2. Austria-Hungarian heir assassinated by a Serbian nationalist; the spark of WWI.
- 3. British passenger boat with 128 Americans on board sunk by German U-Boats; one of the reasons the US joins the war.
- 6. weapons fire a very fast stream of bullets for a long time.
- 8. Building up and strengthening military branches one of the MAIN causes of WWI.
- 10. reliant on the use of gas or diesel engines, tanks, airplanes
- 12. Zeppelins
- 13. Part of the Allies; suffered the most casualties; pulled out.
- 14. Alliance consisted of Great Britain, France, and Russia.
- 17. no man's land
- 20. part of the Allies; largest navy in the world; blockaded the Germans.
- 22. between the trenches in World War I, filled with barbed wire