This was called Manifest Destiny.
manifest destiny
This belief was called "manifest destiny." Americans believed that it was their right, and America's inevitable future, to overtake all of North America.
== ==Belief that the US should expand "from sea to shining sea"
moderates
Secretary of State James Buchanan
go f*** your self
from east coast to the Mississippi river
Manifest Destiny
Manifest Destiny
Manifest Destiny
Manifest Destiny was the idea that Americans had the right to all the land from the Atlantic Ocean to the Pacific Ocean.
== ==Belief that the US should expand "from sea to shining sea"
The United States should extend from the Atlantic Ocean to the Pacific Ocean.
Manifest Destiny
Manifest Destiny
by conquering to people in the valley of Mexico
The United States should extend from the Atlantic Ocean to the Pacific Ocean.
Move westward at any cost. The citizens of the United States had a God-given right to conquer the land to the Pacific Ocean.
They thought it was a God given right to extend from Atlantic to the pacific so they thought it was meant for them to occupy the land from east to west.