Columbia subject headings:
Europe--Defenses.
Military art and science--United States.
National characteristics, American.
United States--Armed Forces--Europe.
Harvard subject headings:
Europe--Defenses.
Military art and science--United States.
National characteristics, American.
United States
United States--Armed Forces--Europe.
Princeton subject headings:
Europe--Defenses.
Military art and science--United States.
National characteristics, American.
United States--Armed Forces--Europe.