I think it was land ownership. As many Americans made the push to the West,
it angered the Native Americans living there because they were not encroaching
on their land but were taking it away from them. This of course led to conflict that killed
many Native Americans
Answer:
The Soviet Union was worried that the US and China would prosper and become more powerful because of each other. Since China was so close to the Soviet Union geographically, they would rather be friends with China and her allies to protect itself and its assets.
Explanation: