Hi ugh What Doc?? For me to answer the question
A state of the United States of america
Answer: What motivated them is the fact that they saw all of their land being taken and decided they had enough and started independence movements. Another reason why is due to their culture also being lost due to the influence of European powers.
Explanation:
I think the answer is the Columbian Exchange.
I hope this helps :)
Your answer would be Amon re. Hope this helps!