The great war crossword

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Across
  1. 4. British penalty for war journalists in WW1
  2. 5. Some muddy WW1 battlefield in northern France
  3. 6. Belgian battlefield region and cartoon Ned
  4. 7. Age of youngest British soldier in WW1
  5. 8. British general on famous WW1 recruitment poster
  6. 10. British prime minister in 1914
  7. 11. Nearby village site of WW1 airship factory
Down
  1. 1. Party in power in Britain at start of WW1
  2. 2. Famous German maker of WW1 airships
  3. 3. Famous British biplane made by Sopwith
  4. 6. Archduke whose assassination triggered WW1
  5. 9. Britain's far-east ally in 1914