World War 1 - summary crossword

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Across
  1. 1. Britain, France, Belgium, Russia, and USA formed this group.
  2. 7. Closest trench to the enemy.
  3. 9. Over 18 million people killed worldwide.
  4. 12. Name of main line of war (trenches) running through France and Belgium.
  5. 15. WW1 was also known as this.
  6. 17. First used in combat during WWI.
  7. 18. German airships that bombed Britain.
  8. 19. Nearly a million used in the war.
  9. 20. Continent where WWI was mainly fought.
  10. 21. - Raids that killed over 500 in Britain.
Down
  1. 2. Infested soldiers in the trenches.
  2. 3. Powers including Germany, Austria-Hungary and Ottoman Empire.
  3. 4. Germany invaded this country in 1914, prompting Britain to declare war.
  4. 5. Agreement signed on November 11, 1918 to end the war.
  5. 6. Bloody battle lasting over five months.
  6. 8. Red flowers symbolizing remembrance of the war.
  7. 10. This type of warfare involved narrow ditches where soldiers lived and fought on the frontline.
  8. 11. Big guns responsible for 75% of WWI deaths.
  9. 13. Dangerous area between trenches.
  10. 14. British civilians under threat here from air raids.
  11. 16. Infested the trenches along with lice.