Columbia subject headings:
Armed Forces--History--20th century.
Arms race--History--20th century.
Defense industries--History--20th century.
Militarism--History--20th century.
Harvard subject headings:
Armed Forces--History--20th century.
Arms race--History--20th century
Defense industries--History--20th century.
Militarism--History--20th century.
Military weapons--History--20th century
Princeton subject headings:
Armed Forces--History--20th century.
Arms race--History--20th century.
Defense industries--History--20th century.
Militarism--History--20th century.