WWI CROSSWORD

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Across
  1. 3. Mass murder of a group of people
  2. 4. quickly destroys tissue
  3. 7. Germany destroyed and bombed Belgium and forced 20% of their population to flee
  4. 8. formalized laws of war after centuries of customary rules, with the term used in trials like Nuremberg (1945-46) to prosecute atrocities, defining acts violating established wartime conduct. And it evolved from there.
  5. 10. delivered most of the gases to the enemies
Down
  1. 1. an industrial reagent, a precursor of pharmaceuticals and other important organic compounds.
  2. 2. A dangerous, poisonous gas and element on the periodic table
  3. 5. anything that goes against the International Humanitarian Law (murder, torture, taking hostages, attacking civilians, etc.)
  4. 6. caused from the unclean air and gases
  5. 8. covering used by soldiers to protect their lungs
  6. 9. Attacked United States ships with submarines