After détente was abandoned, the U. S. president believed that the Cold War could be won by outspending the Soviet Union on weapons. undermining Soviet influence in Eastern Europe. bombing the Soviet Union and its satellite states. engaging the Soviet people directly.

explanation:

the addition to geographic boundaries that might have  kept the people of the huang river civilization from traveling to far distance region is that they had learned about the other river valley civilizations but feared contact would bring invasion.

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c. government control over the unsettled western lands