WW1 Technology and Events

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Across
  1. 2. A promise between countries promising that they will protect each other if attacked
  2. 4. This battle was the deadliest of World War 1
  3. 8. Kind of ship used to carry airplanes
  4. 10. This was signed by France and Germany, officially ending the war; It is also now an international holiday
  5. 12. Tactic used across the western front which created a stagnant front line
  6. 14. This treaty punished Germany and created the League of Nations, as well as many other things
  7. 17. Long range cannons with high-explosive shells
  8. 18. This event in Russia gave Russia a new kind of government and pulled Russia out of the war
  9. 20. First and last name of the archduke that was assassinated, which led to Austria-Hungary declaring war on Serbia
Down
  1. 1. A weapon used for clearing trenches by burning them
  2. 3. A telegram that was intercepted by Britain which talked about Germany allying with Mexico to attack America
  3. 5. Submarine used by Germany
  4. 6. This alliance was made up of Germany, Austria-Hungary, and the Ottoman Empire
  5. 7. Gun with a high fire-rate which created the need for trench warfare
  6. 9. Handheld explosive that could be thrown
  7. 11. An armored vehicle with cannons and machine guns that was used to approach trenches
  8. 13. Flying vehicle that was used for scouting and attacking
  9. 15. Famously used chemical weapon that is now illegal
  10. 16. A kind of communication that was used on the battlefield
  11. 17. This alliance was made up of Britain, France, Russia, and the United States
  12. 19. A cruise ship that was sunk by a German U-boat, which angered America