why was it critical for good pioneer trails going west to have a decent route through the Rocky mountains

4. any area in which one nation has power over another; i.e. - this happened to china when it was defeated by japan

What is the supreme law of the land? the declaration of independence the federalist papers the articles of confederation the constitution

"the plan of removing the aboriginal people who yet remain within the settled portions of the united states . . approaches its consummation. . an extensive region . . has been assigned for their permanent residence. it has been divided into districts and allotted among them. many have already removed and others are preparing to go. . " removal of southern indians to indian territory, 1835 this passage is most closely related to a) imperialism. b) the civil war. c) westward expansion. d) the french indian war.