In the1960’s, the United States was involved in Vietnam primary because:(1 point)

Responses

 the American people supported the involvement in Vietnam.
 the American people supported the involvement in Vietnam.

it feared that if Vietnam became communist there would be a domino effect causing surrounding countries to become communist.
it feared that if Vietnam became communist there would be a domino effect causing surrounding countries to become communist.

Cambodia was threatened militarily by the possibility of a Communist government in Vietnam.
Cambodia was threatened militarily by the possibility of a Communist government in Vietnam.

American businesses in Vietnam supported Communist control.

This statement is not correct. American businesses in Vietnam did not support Communist control.

it feared that if Vietnam became communist there would be a domino effect causing surrounding countries to become communist.

That is correct. One of the main reasons for the United States' involvement in Vietnam during the 1960s was the fear of the domino theory. The belief was that if Vietnam fell to communism, other Southeast Asian countries would also follow suit, leading to the spread of communism in the region.

The main reason why the United States was involved in Vietnam in the 1960s was due to its fear of the domino effect. This refers to the concern that if Vietnam were to fall to communism, it could lead to a chain reaction where neighboring countries would also succumb to communism. The U.S. government believed that stopping the spread of communism was vital to preserving its global influence and security.

To confirm this answer, you can consult reliable sources such as history books, scholarly articles, and renowned websites. These sources usually provide in-depth explanations of historical events and the reasons behind them. Some reliable sources to consider are:

1. Books written by historians specializing in the Vietnam War era, such as "The Vietnam War: A Concise International History" by Mark Atwood Lawrence or "Embers of War: The Fall of an Empire and the Making of America's Vietnam" by Fredrik Logevall.
2. Peer-reviewed scholarly articles available in databases like JSTOR or Google Scholar. Search keywords like "United States involvement in Vietnam" or "domino theory" to find relevant studies.
3. Websites from reputable organizations like the National Archives, the Smithsonian, or academic institutions such as universities or research centers.

By referencing these sources, you can gain a comprehensive understanding of the reasons behind the United States' involvement in Vietnam during the 1960s.