World War I

123456789101112131415161718
Across
  1. 4. The Battle of the ___ was one of the bloodiest battles in human history.
  2. 6. Chemical weapons, including chlorine and mustard ___, were used extensively during WWI.
  3. 7. A disastrous Allied campaign in the Ottoman Empire that resulted in heavy casualties.
  4. 8. This famous luxury liner sank in 1912, but its construction had been influenced by naval arms race tensions leading up to WWI.
  5. 11. A deadly flu pandemic, exacerbated by wartime conditions, killed millions worldwide during WWI.
  6. 12. LAND The area between opposing trenches, often littered with barbed wire and craters.
  7. 13. Complex systems of these were dug by both sides, creating a brutal stalemate on the Western Front.
  8. 14. POWERS The alliance consisting primarily of Germany, Austria-Hungary, and the Ottoman Empire.
  9. 16. Some countries, such as the United States and Switzerland, remained ___ during the early years of the conflict.
  10. 18. The assassination of this Austrian noble sparked the beginning of WWI.
Down
  1. 1. German airships used for reconnaissance and bombing raids during WWI.
  2. 2. Governments on all sides used this to mobilize support for the war effort and demonize the enemy.
  3. 3. The agreement that ended the fighting on the Western Front on November 11, 1918.
  4. 5. HAND The secret society responsible for the assassination of Archduke Franz Ferdinand, setting off the chain of events leading to WWI.
  5. 9. The alliance consisting primarily of France, Russia, and the United Kingdom.
  6. 10. The sinking of this British passenger ship by a German U-boat helped bring the United States into the war.
  7. 13. The Treaty of Versailles was one of several agreements that officially ended WWI.
  8. 15. CROSS This humanitarian organization provided medical assistance to soldiers on all sides of the conflict.
  9. 17. Armored vehicles first used in significant numbers during WWI, revolutionizing ground warfare.