world war 1

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Across
  1. 3. Sunk by German subamrine
  2. 5. Ditches underground
  3. 7. stalemate
  4. 9. entrance to world war 1
  5. 11. expanding territory by taking over another country
  6. 13. Formed by France,Great Britain and russia
Down
  1. 1. Ended the fighting
  2. 2. military ideals
  3. 4. fight violently with eachother
  4. 6. end of WW1
  5. 8. Proposed the'' fourteen points''
  6. 10. ideals,facts or allegation
  7. 12. No man's-