Summarize the legacy of the Vietnam war and what it's lasting impact is on the United States

Lack of Trust in US Government

Explanation:

Prior to Vietnam, if the US government stated a policy goal, the motivations behind the goal were assumed to be good by the population.

Vietnam marked the moment where the US citizenry lost faith in its government. In particular, with its prioritization of stopping communism over all else. This occurred because of a lack of truth telling and imminent defeat.