what happened when the Native Americans and the British/Colonists Americans started to move westward?

That they stole their land and killed the Natives.

the right answer is the end of world war ii

after the end of a global wwii all the nations involved, in an attempt to create an organization to maintain world peace. this agreement would work settling international disputes via negotiation and arbitration instead of leading the issues escalate to another war.

answer; i believe the correct answer is (favorable balance);