The best way to determine the authors point of view when researching for a thesis paper is to think of what he wanted to say by checking the whole paper and perhaps his recent history of publication. This will give you a good idea what did the author mean by some things he wrote.
Roger Sherman signed the Great Compromise
Answer:
Hey!
The relationship with the Soviet Union changed because of rivalries over ideology and borders.
Relationship with the United States improved because the U.S. saw China as a useful partner in its conflict with the Soviet Union.
<h3>Hope it helps!</h3>