Final answer:
One source of conflict was the difference in ideas of land ownership between American Indians and European colonists.
Step-by-step explanation:
One source of conflict between American Indians and European colonists was the difference in their ideas of land ownership. Native peoples did not believe in private ownership of land and viewed it as a resource to be held in common for the benefit of the group. On the other hand, European colonists believed in private property rights and claimed complete ownership of the land they occupied.
The colonists built houses, fenced their fields, and let their cattle and pigs roam freely. The natives, who moved seasonally and did not practice land ownership in the European sense, often killed the colonists' livestock that were damaging their unfenced crops. This led to conflicts as the colonists demanded compensation for their property.