JOHN F. KENNEDY IN VIETNAM There are many critical questions surrounding United States involvement in Vietnam. American entry to Vietnam was a series of many choices made by five successive presidents during these years of 1945-1975. The policies of John F. Kennedy during the years of 1961-1963 were ones of military action, diplomacy, and liberalism. Each of his decision was on its merits at the time the decision was made. The belief that Vietnam was a test of the Americas ability to defeat communists in Vietnam lay at the center of Kennedy’s policy. Kennedy promised in his inaugural address, "Let every nation know...that we sha