<span>This is of course somewhat of a subjective question, but in general most would agree that in general expansion was not justifiable since the Mexicans and Natives were doing nothing to provoke the US. One could argue it was justifiable since Americans needed more land. </span>
Answer:
He called on his disciples, attracted many followers, and taught people how to live a meaningful life.
Answer:
Americans migrating from large cities in the East were looking for a chance to own a land.
