The correct answer to this open question is the following.
The reason for the United States of America's departure from Vietnam in 1973 was that President's Nixon administration was already under heavy scrutiny and criticism for maintaining the United States troops installed in South Vietnam.
After very difficult moments such as teh Tet Offensive, the American society in general, and the young Americans in particular, started to seriously question the participation of the United States Army in the Vietnam War, concluding that was not a US war. They started to demand the withdrawal of the US troops from Vietnam and organized many protests and marches to demand action on the part of the federal government.
Finally, in January 1973, a peace agreement was signed and the US started to withdraw its troops. The process lasted until March 29, 1973.
However, the United States contib¿nued to support
South Vietnam, applying the foreign policy of containment to impede the spread of Communist over South Vietnam.
Answer:
In my opinion, the most effective way to promote long-term social changes is through voting. This is so because, through elections, society expresses its will regarding the different problems and situations that are generated in its daily life, in a legitimate way.
In this way, each citizen votes for the political sector that most represents his interests and his ideology, a sector that in turn proposes changes for society, or the preservation of the prevailing situations at the time.
Thus, in the 1960s the exercise of the vote by African Americans after the Civil Rights Movement allowed the consolidation of favorable policies towards this social group in terms of equal access to rights.
