How did the cold war play a role in the decision of the united states to intervene in vietnam, cambodia, and laos?

In a planned economy, which of the following does the job of market forces in order to determine the outcomes?

Discuss the ways in which the northern and southern economies and social customs differed in the decade prior to the civil war. why are they characterized as having “two distinct societies”?

How did the united states obtained the purchase of floridia to extand its frontiers to the pacific ocean