What democratic principles guided president kennedy in facing the various cold war crisis?

The Truman Doctrine of "containment of communism" was a guiding principle of American foreign policy thoughout the Cold War, not to roll it back, but to keep it from spreading and to resist communist aggression into other countries.

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the answer is

the answer to your question is a. the salt plains

in 1811, he led an expedition, known as the george c. sibley expedition, to improve relations with the pawnee and kansa tribes, and also to locate the rumored jefferson's salt mountain