In the1960’s, the United States was involved in Vietnam primary because:(1 point) Responses 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. 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. American businesses in Vietnam supported Communist control.
