Why did many of the first conflicts between
Europeans and American Indian groups begin?

Because Europeans started to migrate to America, they found many cultural differences and opposite beliefs that made Europeans and Native Americans fight for a long time until they found an agreement.

Explanation:

disorders of the brain include both behavior disorders and other psychiatric illnesses. the primary difference between a behavior disorder and another type of psychiatric disorder is the presence of choice. psychiatric conditions are considered to be involuntary while in behavior disorders, choices are essential.