Columbia subject headings:
Special operations (Military science)
United States--Armed Forces--History--20th century.
United States--Foreign relations--1981-1989.
United States--History, Military--20th century.
Harvard subject headings:
Special operations (Military science)
United States--Armed Forces--History--20th century.
United States--Foreign relations--1981-1989.
United States--Foreign relations--1989-
United States--History, Military--20th century.
Princeton subject headings:
Special operations (Military science)
United States--Armed Forces--History--20th century.
United States--Foreign relations--1981-.
United States--History, Military--20th century.