World War I

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Across
  1. 3. happened to Archduke Ferdinand
  2. 4. stronger countries taking over weaker nations
  3. 6. new country created after WWI
  4. 7. the right to vote
Down
  1. 1. countries increase army and weapons
  2. 2. thinking your country is the best
  3. 5. a group of countries helping each other