Columbia subject headings:
Military art and science--France--History--20th century.
Military art and science--Germany--History--20th century.
Military art and science--Great Britain--History--20th century.
Strategy--History--20th century.
Harvard subject headings:
Military art and science--France--History--20th century.
Military art and science--Germany--History--20th century.
Military art and science--Great Britain--History--20th century.
Strategy--History--20th century
Princeton subject headings:
Military art and science--France--History--20th century.
Military art and science--Germany--History--20th century.
Military art and science--Great Britain--History--20th century.
Strategy--History--20th century.