World war one

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Across
  1. 6. Triple _______ was made up of Germany, Italy and Austria-Hungary
  2. 10. What was the name of the gang who assassinated Franz Ferdinand?
  3. 11. The name of the German war plan
  4. 13. What nationality were the blackhand gang?
  5. 14. ____ and lice were found frequently in the trenches
  6. 15. Germany invaded this country, but they were neutral
  7. 16. Soldiers wore these on their heads
Down
  1. 1. This is the word for when neither side could win the war
  2. 2. Who did Germany invade first in WWI?
  3. 3. This was a disease caused by water in the trenches
  4. 4. This can be used to see over the top of a trench
  5. 5. Lee Enfield was the name of this type of weapon
  6. 7. World war one was fought in these
  7. 8. Kaiser ______ was the leader of Germany in WWI
  8. 9. The triple _________ was made up of Britain France and Russia
  9. 12. The war lasted ____ years