Columbia subject headings:
Intervention (International law)
Latin America--Foreign relations--United States.
Nicaragua--Foreign relations--United States.
United States--Foreign relations--Latin America.
United States--Foreign relations--Nicaragua.
Harvard subject headings:
Intervention (International law)
Latin America--Foreign relations--United States.
Nicaragua--Foreign relations--United States.
United States--Foreign relations--Latin America.
United States--Foreign relations--Nicaragua.
Princeton subject headings:
Latin America--Relations--United States.
Nicaragua--Relations--United States.
United States--Relations--Latin America.
United States--Relations--Nicaragua.