Question

The United States decided to help South Korea mainly because of which of the following?

A need to create more equal trade
A need to keep a military base in Asia
A need to keep the Soviet Union out of Asia
A need to protect the American economy

Answer 1

Well, this was called the "Korean War", because North Korea was invading South Korea in the mission of spreading Communism, which was the Soviet Union's main order, (the Soviet Union was determined to spread communism to other countries), and the United States was AGAINST the spread of Communism, so in order for the Soviet Union to NOT help North Korea, the U.S. pitched in to help South Korea.
Therefore, your answer is C., A need to keep the Soviet Union out of Asia.
=)

Answer 2

It`s a need to keep a military Base in Asia, I believe.