Answer:
Harassed by the settlers.
Step-by-step explanation:
When the European settlers came into America, many of them took claim of the lands that previously belonged to the natives. As the natives tried to do their daily activities, many of these settlers decided to directly confront the natives and prevent them from entering their 'territory'.
This situation divided the natives. Some of them decided to retaliate and show hostility toward the settlers while the rest of them decided to migrate to other territory far away from the settlers.