World War I

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Across
  1. 3. An agreement among nations to defend one another
  2. 5. registration of young men to serve in the army
  3. 7. Secret message sent to Mexico from Germany's foreign minister
  4. 10. a policy to remain neutral and let other countries handle their own affairs
  5. 12. President during WWI
Down
  1. 1. Peace negotiation promise signed after WWI
  2. 2. Organization to ensure WWI was 'the war to end all wars'; ensure peace
  3. 4. Alliance group which included Germany, Serbia-Hungary, and Ottoman Empire
  4. 6. long dugouts which protected soldiers from the enemy, found between no-mans-land
  5. 8. love of one's country and desire for it to be free from control of others
  6. 9. British steamship torpedoed by a German submarine
  7. 11. New military technology that burned lungs and blinded eyes