1. The opinion that sending troops to Vietnam was a good idea changed by 1971 negatively because the images of the war televised turned public opinion against the Vietnam War.
2. The year that opinions changed about sending troops to war was 1966, and this opposition continued to increase in the 1970s.
3. In 1969, only 35% of the people believed that the US made a good decision to send troops to Vietnam, whereas 60% felt it was good in 1965.
Media reports from the field, especially televised activities on the Vietnam War, were shown to US citizens.
Based on these reports, many people changed their opinion and felt that the United States government betrayed them by getting involved in the Vietnam War.
Then, the larger population started campaigning for an end to the unnecessary war.
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