What concern shaped american foreign policy throughout the cold war?

The cold war concerns shape American outside strategy in the 1950s are the beneath: 
- The United States went into a progression of cautious organizations together that were exceptional in American history. 
- Fear of socialism drove the United States to bolster some harsh, severe governments the length of they were hostile to Communist. 
- The United States regularly depended on secret operations to undermine or topple governments adjusted to the Soviet Union.

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