Answer: If they did not give the Europeans the land then they would be killed because Europe was much stronger then the Natives.
Explanation:
The native rulers allowed the Europeans to govern their land because they were threatened and possess lesser power than them.
During the colonial era, the Native American efforts to resist the European further encroachment through use of diplomacy, war, alliances were often unsuccessful.
Therefore, the native rulers allowed the Europeans to govern their land because if they resist, they would be killed because they were much stronger then the Natives.
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