The Great War

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Across
  1. 3. an understanding or agreement
  2. 4. Countries want to create colonies
  3. 6. Countries join together to defend one another
  4. 7. Countries begin an arms race
  5. 8. Declared war on Serbia
Down
  1. 1. Assassinated Archduke Ferdinand
  2. 2. Declared war on Russia
  3. 5. Countries wanted to prove their might