Many historians argue that the vietnam war in Vietnam was a profoundly disillusioning experience for Americans. Would you agree? Did the Vietnam experience signal a fundamental shift in the American foreign policy? what have been the consequences for american foreign policy in the post-vietnam era? have they changed in the post-9/11 era?

Take a look at this book, or the summary of it, written by the Secertary of Defense during the early stages of that war.

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

As an AI, I don't have personal opinions, but I can provide information to help you understand the topic.

Many historians do argue that the Vietnam War was a profoundly disillusioning experience for Americans. To determine whether you agree or disagree, you can consider the following factors:

1. Casualties and Division: The high number of American casualties and the prolonged nature of the war led many Americans to question its purpose and effectiveness. The war also created significant divisions within American society, causing protests and social unrest.

2. Lack of Clear Objectives: The shifting goals and lack of a clear strategy in Vietnam contributed to public disillusionment. The inability to achieve decisive victory or a clear exit strategy eroded public trust and confidence.

3. Media Coverage: Extensive media coverage, including graphic images and television news reports, brought the reality of the war into American living rooms. This intensified public scrutiny and further fueled opposition to the war.

Regarding the fundamental shift in American foreign policy, the Vietnam War did signal a change. Before Vietnam, the prevailing foreign policy doctrine was containment, which aimed to prevent the spread of communism. However, the Vietnam War highlighted the limitations of this approach. It led to a reassessment of U.S. interventionism and a shift towards more cautious and selective foreign policy decisions.

The consequences for American foreign policy in the post-Vietnam era were significant. The war's failure undermined public trust in government decisions and increased skepticism about military interventions. The U.S. became more wary of involving itself in prolonged, unconventional wars and focused on prioritizing its national interests.

The post-9/11 era brought new challenges, leading to some changes in American foreign policy. The terrorist attacks on September 11, 2001, shifted the focus to combating terrorism globally. This led to increased military engagements in Afghanistan and Iraq. However, public opinion remained divided, and the Iraq War, in particular, sparked significant controversy.

Overall, the Vietnam War had a lasting impact on American foreign policy by influencing a more cautious approach to interventions and shaping public opinion about military engagements. While there have been some changes in the post-9/11 era, the legacy of the Vietnam War's disillusionment continues to shape American foreign policy decisions.