Columbia subject headings:
International law--United States.
Intervention (International law)
United States--Foreign relations--1945-1989.
Harvard subject headings:
International law--United States.
Intervention (International law)
United States--Foreign relations--1945-
United States--Foreign relations--1945-1989.
Princeton subject headings:
International law--United States.
Intervention (International law)
United States--Foreign relations--1945-1989.