Answer:
<em>Xenophobia</em>
Explanation:
<em>dislike of or prejudice against people from other countries.</em>
Because it was done that way to spread fear and send a message.
It wasn't simply murder, it was a statement.
<u><em>Basically for political interests and expansion. </em></u>
<u><em>Infact new leaders could be found in the different new cultures in case of problems with America or Europe. Through the conquest and migration, Polynesian culture was introduced in the isles too, beyond the initial territories</em></u>
