How was native american society structured prior to the arrival of american settlers?

They differed in the region, such as the Pueblo's had a very advanced society with a hierarchy due to settling down and relying on farming rather than hunting. Other tribes such as the ones in the Great Plains were very scattered and not incredibly advanced due to the nomadic lifestyle of constantly moving to where the animal herds went. hope this helped :)

4. great depression

Iraq because its lack of policing and government concern