The Second Battle of Ypres

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Across
  1. 3. Number of major engagements in the Battle
  2. 4. The type of gas used by the Germans
  3. 6. The year the Battle took place
  4. 8. The name given to the allied intrusion in the German territory
Down
  1. 1. The country where Ypres is located in
  2. 2. The Nationality of the soldiers who rushed to defend the breached front line in the first gas attack
  3. 3. The nationality of the soldiers hit by the first gas attack
  4. 4. The name of the side the Germans fought for
  5. 5. Poem written at the Battle of Ypres
  6. 7. The substance hanker chiefs were soaked in to counter the gas