Between the end of the Korean War and the escalation of the Vietnam War in 1965, the concept of an American dream" seemed to have its strongest hold on the American population. How did the protest movements of the mid to late 1960s and early 1970s confirm or transform this vision of the "pursuit of happiness" in the USA?

There were a lot of protest movements. Many of them merged into a conglomeration of one: anti vietnam war

And, there are several variations of the "american dream", and I wonder what you are asking. Sometimes dreams are Hallucinations. Servral during that time that were in evidence as hallunications was gender equality (womens' rights) and black equality (civil rights). s and s had not arrived by then. But the main dream that was burst was the belief that our Democratic government had good intentions toward others and towards citizens, and would never lie.
These times were exciting, and revealing.

http://en.wikipedia.org/wiki/Opposition_to_United_States_involvement_in_the_Vietnam_War

To understand how the protest movements of the mid to late 1960s and early 1970s confirmed or transformed the vision of the "pursuit of happiness" in the USA, we need to examine the historical context and key events of this period.

During this time, the United States was experiencing significant social and cultural upheaval, driven by several factors such as the civil rights movement, the counterculture movement, the feminist movement, and opposition to the Vietnam War. These movements challenged the existing power structures, ideologies, and policies, leading to a reevaluation of the American Dream and the pursuit of happiness.

1. Civil Rights Movement: The civil rights movement aimed to end racial segregation and discrimination, advocating for equal rights and opportunities for African Americans. By challenging institutional racism, this movement highlighted the disparity between the promise of the American Dream and the realities faced by marginalized communities.

2. Counterculture Movement: The counterculture movement, characterized by anti-establishment sentiments, rejected traditional values and norms, advocating for personal freedom, creativity, and exploration. Many young Americans rejected materialistic pursuits and consumerism, seeking alternative forms of fulfillment and happiness, often outside the conventional American Dream template.

3. Feminist Movement: The feminist movement sought to challenge gender discrimination and traditional gender roles. Women demanded equal rights, reproductive freedom, and expanded opportunities in education and the workforce. This movement expanded the idea of pursuing happiness to include gender equality, women's rights, and personal autonomy.

4. Opposition to the Vietnam War: The Vietnam War sparked widespread protests, as Americans questioned the government's handling of foreign policy and the morality of military intervention. The anti-war movement highlighted issues of peace, justice, and the prioritization of human lives over geopolitical interests. These protests challenged the notion that the pursuit of happiness should be achieved through military might and indicated a desire for a more peaceful and compassionate society.

Overall, the protest movements of this era both confirmed and transformed the vision of the pursuit of happiness. They confirmed the American Dream's fundamental promise of individual freedom and the pursuit of a better life, but they also widened its scope by emphasizing social justice, equality, personal fulfillment beyond materialism, and a reevaluation of national priorities.

To explore this topic further, you could refer to primary sources such as speeches, writings, and documentaries from activists and leaders of these movements, as well as scholarly analysis of the era. Additionally, examining historical records, public opinion polls, and popular culture of the time would provide a comprehensive understanding of how these movements impacted the concept of the American Dream.