Columbia subject headings:
Harvard subject headings:
Europe--Foreign relations--1945-
Europe--Foreign relations--United States.
United States--Foreign relations--1981-1989.
United States--Foreign relations--1989-
United States--Foreign relations--Europe.
Princeton subject headings:
Europe--Foreign relations--1945-
Europe--Foreign relations--United States.
United States--Foreign relations--1981- .
United States--Foreign relations--Europe.