World War 1 Crossword

3. toxic chemical mixtures in a gas state
5. land that is unoccupied due to fear or uncertainty of the enemy
7. consist Serbia, Russia, France, the United Kingdom, Italy, Belgium and the United States.
10. a vessel that can be submerged and navigated under water
13. consist of Austria-Hungary, Germany, Bulgaria and the Ottoman Empire
17. a small, wingless, parasitic insect that lives on the skin of soldiers in World War I
18. a long, narrow ditch
19. a machine that is able to fly by gaining support from the air

1. long-tailed rodents
2. things given to people in the trenches
4. a large type of armored fighting vehicle with tracks
6. a type of artillery with a relatively short barrel
8. diarrhea which contains blood
9. a small bomb that can be thrown by hand.
11. an indirect fire weapon that fires bombs at low velocities, short ranges, and high-arches
12. A automatic firearm
14. injury of the skin, blood vessels, and nerves of the feet due to prolonged exposure to cold and wet
15. To leave the trenches and attack the enemy
16. the reaction of some soldiers in World War I to the trauma of battle