World War I Crossword

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Across
  1. 5. Country that declared war on Serbia, sparking the chain reaction of alliances
  2. 6. The Ottoman Empire joined the central powers, aligning with Germany and Austria-Hungary
  3. 7. This type of warfare characterised much of the fighting on the Western Front
  4. 11. This weapon, first used on a large scale in World War I, had a significant impact on the war's tactics
  5. 12. Battle where the trench warfare became prominent
  6. 14. Leader of Germany during World War I
Down
  1. 1. Treaty that officially ended World War I
  2. 2. Franz Ferdinand was assassinated in this city, triggering a war
  3. 3. Region known as the "Powder Keg of Europe" before the warBattle of the Cambrai Battle where tanks were first used in significant numbers
  4. 4. Last German offensive of World War I, also known as the Spring Offensive
  5. 8. Telegram Code name for the secret German communication proposing a military alliance with Mexico against the United States
  6. 9. President of the United States during World War I
  7. 10. This country declared war on Germany in 1917, bringing the U.S. into the conflict
  8. 13. Alliance formed by Germany, Austria-Hungary, and Italy