Columbia subject headings:
Europe--Military relations--United States.
Europe--Politics and government--1945-
National security--Europe.
United States--Military relations--Europe.
Harvard subject headings:
Europe--Foreign relations--United States.
Europe--Military relations--United States.
Europe--Politics and government--1945-
National security--Europe
United States--Foreign relations--Europe.
United States--Military relations--Europe.
Princeton subject headings: