Columbia subject headings:
Germany--Foreign relations--Great Britain.
Great Britain--Foreign relations--Germany.
National security--Germany.
National security--Great Britain.
Harvard subject headings:
Germany--Defenses.
Germany--Foreign relations--Great Britain.
Great Britain--Defenses.
Great Britain--Foreign relations--Germany.
National security--Germany
National security--Great Britain
Princeton subject headings:
Germany--Defenses.
Germany--Foreign relations--Great Britain.
Great Britain--Defenses.
Great Britain--Foreign relations--Germany.
National security--Germany.
National security--Great Britain.