Columbia subject headings:
Great Britain. Army--History--World War, 1914-1918.
Sociology, Military--Great Britain--History--20th century.
Harvard subject headings:
Great Britain. Army--History--World War, 1914-1918.
Sociology, Military--Great Britain--History--20th century.
Princeton subject headings:
Great Britain. Army--History--European War, 1914-1918.
Sociology, Military--Great Britain--History--20th century.