What groups of people moved west during the Manifest Destiny?

One of the groups affected by Manifest Destiny was lower and middle class white American farmers, tradesmen, and adventurers, who recognized the opportunity of acquiring a better life by settling on cheap land in the west. These were the people who were best poised to take advantage of the doctrine.

Explanation:

i would say that the politicial parties from state to state varies.

to force terrorists groups to stop attacking western targets using massive military force.