Columbia subject headings:
Harvard subject headings:
Churchill, Winston, 1874-1965
Great Britain--History, Naval--20th century.
Great Britain. Royal Navy
Naval strategy--History--20th century.
Sea-power--Great Britain--History--20th century.
Princeton subject headings:
Churchill, Winston, 1874-1965--Military leadership.
Great Britain--History, Military--20th century.
World War, 1914-1918--Naval operations, British.
World War, 1939-1945--Naval operations, British.