Columbia subject headings:
Europe--Foreign relations--United States.
United States--Foreign relations--Europe.
World politics.
Harvard subject headings:
Europe--Civilization--1945-
Europe--Foreign relations--United States.
Europe--Relations--United States.
United States--Civilization--1945-
United States--Foreign relations--Europe.
World politics.
Princeton subject headings:
Europe--Civilization--1945-
Europe--Relations--United States.
United States--Civilization--1945-