Identify and explain at least three social, political, or economic changes that were a result of U. S. foreign policy in the late 1800s/early 1900s.

How did manifest destiny encourage westward expansion? a.) people thought their lives would be easier out west. b.) adding additional territories to the west meant more land and opportunity for settlers. c.) mexico did not want to give up texas to the united states. d.) it was more expensive to live in the eastern part of the united states.