This is the wrong subject buddy
Conflict between white settlers and native- American tribes
<span>The Red River War
was a military campaign launched by the United States Army in 1874 to
remove the Comanche, Kiowa, Southern Cheyenne, and Arapaho Native
American tribes from the Southern Plains and forcibly relocate them to
reservations in Indian Territory</span>
I think that the first one is correct.
Because, the Persians felt that their army could outnumber Greece, also because they might not have known what they were getting into when they attacked the Greek city-states. Hope that helped :D
