WWI

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Across
  1. 3. They used to call them water tanks
  2. 6. Large, heavy guns used on land warfare
  3. 7. THE NICKNAME FOR US SOLDIERS IN WWI
  4. 8. strongest ARMY
Down
  1. 1. Line
  2. 2. was selling goods to allies
  3. 4. Country that switched sides in both world wars
  4. 5. Started the world wars