WW1

12345678910
Across
  1. 4. Treaty that ended Russia's participation in World War I.
  2. 7. Long, deep ditch used in warfare to shelter from enemy fire.
  3. 8. Type of warfare that introduced the use of gases.
  4. 10. Last name of the Russian leader who led the Bolshevik Revolution.
Down
  1. 1. He was the Emperor of Germany during World War I.
  2. 2. The major event that sparked the beginning of World War I, the assassination of Archduke Franz _________.
  3. 3. This type of machine changed warfare, making traditional battle tactics obsolete.
  4. 5. Alliance including Germany, Austria-Hungary, and Italy initially.
  5. 6. This empire's weakening was a significant prelude to the war.
  6. 9. Country that switched from the Triple Alliance to the Triple Entente at the start of the war.