World War 1

4. The note that was sent from Germany to Mexico, offering to help Mexico gain back stolen land.
8. Another name for the Triple Alliance.
11. The sinking of this U.S. ship caused the U.S. to join the war.
12. When two aircrafts are fighting in the sky.
13. A type of aircraft used during WWI, which mainly dropped bombs.
15. A rapid firing weapon improved during WWI.
16. Name for the war area in France.
19. A name for German submarines.
21. When one country promises to protect another.
25. A dangerous weapon first used by the Germans, it caused suffocation.
27. A type of bomb.
28. A military vehicle
31. The treaty signed that ended WW1.
32. A type of poisonous gas that causes blistering inside the body.
33. A strong feeling of pride for one’s nation.
35. Money given to the government by its citizens to pay for war.
36. Prime minister of the U.K. during the war.
37. Another name for WWI

1. An organization founded after WWI between the nations to promote peace.
2. A weapon used during WWI that used fire.
3. An agreement between both sides in a war to stop fighting.
5. The method of attacking ground targets from aircrafts.
6. The alliance between Britain, France, Russia, USA.
7. Used to persuade the civilians to support a certain side of the war.
9. Name for the war area in Russia.
10. Took power in Russia and offered a truce to Germany.
14. Extending a country's power by military force.
17. A war where all of a country's resources were used to destroy another.
18. Another name for the Triple Entente.
20. Was heir to the throne of Austria-Hungary, his assination is the main cause of WWI.
22. Used to protect the soldiers lungs during gas bombings.
23. The area between trenches.
24. Date of surrender.
26. The alliance between Germany, Austria-Hungary, and Turkey.
28. A war in which all of the major nations are involved.
29. A style of warfare in which soldiers dug trenches that were used for living and fighting.
30. President of the U.S. during WWI.
34. extending a country's military