<span>because of the Germans' decision to resume the policy of unrestricted submarine warfare.
Hope this helps.</span>
The type of society which didn't have a centralized government was called a Pastoral society. So that is your correct answer.
All the other civilizations/societies - the Egyptian one, the Mycenaeans, and the Indus valley civilization - had governments which were centralized and not dispersed to different locations.
Frederick Douglass - Hope i helped :)
