B, it was when the western pioneers moved east to discover new land to grow crops and make population XD
The answer is the first one
Answer:
machinery and equipment developed from the application of scientific knowledge.
Explanation:
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Answer:
President Truman assigned General Douglas MacArthur as the leader of the UN troops. Truman wanted to restore peace in North and South Korea as soon as possible. Under no circumstances did Truman want to give the Chinese a reason to enter the war. He wanted MacArthur to stay away from the Chinese border.
Instead of following Truman's orders, MacArthur did things his way. He thought that the Chinese would not join in the war, so he assured Truman that the Chinese army would not take part in the war when the UN forces reach the Yalu River, the border between China and North Korea.
