Answer:
aggressive towards neighboring tribes who were not members of the eastern Woodlands
Step-by-step explanation:
The native Americans that settled in what is today known as Illinois, are referred to as Eastern Woodlands, comprising different tribes such as Cahokia, Kaskaskia, Peoria, etc. They were known for their agricultural and foraging practices. They sometimes hunt bison in the wild.
However, they were constantly pursued and disturbed by the neighboring tribes such as Dakota Sioux, Fox, other Algoquain tribes around.
This showed that these eastern woodlands tribes were not "aggressive towards neighboring tribes who were not members of the eastern Woodlands."