WORLD WAR I

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Across
  1. 3. development of armed forces
  2. 7. barren expanse of mud between opposing trenches
  3. 8. competing for colonies
  4. 9. germans war plan
Down
  1. 1. this assassination started the war
  2. 2. president Wilsons campaign slogan
  3. 4. alliance between France, Russia, and Britain
  4. 5. leads to competition between nations
  5. 6. British liner that 128 Americans died on