In Lyndon B Johnson’s speech “American Policy in Vietnam”, Johnson’s structure of his speech supports the overall purpose that the United States needs to help South Vietnam during the Vietnam War by persuading the audience that it is the United States duty to maintain our promises and to help our allies like we have done in previous wars. “Thus, over many years, we have made a national pledge to help South Vietnam defend its independence.”(Paragraph 3) By employing the words “national pledge”, Johnson has described the decisions to engage with other countries as a nationwide oath or in better terms, agreement in what we will do. “Well, we have a responsibility there for the same reason that we have a responsibility for the defense of Europe.”(Paragraph
