Columbia subject headings:
Europe--Foreign relations--United States.
Europe--Politics and government--1945-
Soviet Union--Politics and government--1985-1991.
United States--Foreign relations--Europe.
Harvard subject headings:
Europe--Foreign relations--1989-
Europe--Foreign relations--United States.
United States--Foreign relations--1989-1993.
United States--Foreign relations--Europe.
Princeton subject headings:
Europe--Foreign relations--1989-
Europe--Foreign relations--United States.
United States--Foreign relations--1989-
United States--Foreign relations--Europe.