Answer:
Flexible Response gave the president the ability to select from nonmilitary options, as well as military options, when responding to a crisis and allowed the United States to meet each hostile action with a proportional reaction.
Explanation:
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Republic for at least the last half
Generally speaking, in the mid-1800s, pioneers who traveled through the Great Plains to the West faced "<span>c. steep passes and difficult terrain" since this territory was wildly unpredictable and oftentimes dangerous. </span>