Columbia subject headings:
Intervention (International law)
Vietnam War, 1961-1975--United States.
War and emergency powers--United States.
Harvard subject headings:
Intervention (International law)
Vietnam War, 1961-1975--United States
War and emergency powers--United States
Princeton subject headings:
Intervention (International law)
Vietnam War, 1961-1975--United States.
War and emergency powers--United States.