WW1

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Across
  1. 2. The most commonly used gas in WWI was [bis(2-chloroethyl) sulfide]. In pure liquid form, this is colorless, but in WWI impure forms were used, which had a mustard color with an odor reminiscent of garlic or horseradish.
  2. 4. World War I or The First World War
  3. 9. or peace activism did exist during the First World War
  4. 10. to protect soldiers from the effects of chloride gas.
  5. 11. France, Great Britain, Russia, Italy, Japan and later, the United States
Down
  1. 1. Chauchat M1915
  2. 3. of Archduke Franz Ferdinand
  3. 5. is an agreement made by opposing sides in a war to stop fighting for a certain time; a truce.
  4. 6. Zimmermann was a secret diplomatic communication issued from the German Foreign Office in January 1917 that proposed a military alliance between Germany and Mexico if the United States entered World War I against Germany.
  5. 7. The alliance between Germany and Austria-Hungary at the start of World War I
  6. 8. is a type of combat in which the opposing sides attack, counterattack, and defend from relatively permanent systems of trenches dug into the ground.