Columbia subject headings:
Churchill, Winston, 1874-1965--Military leadership.
Great Britain--History, Naval--20th century.
Great Britain. Royal Navy--History.
World War, 1914-1918--Naval operations, British.
World War, 1939-1945--Naval operations, British.
Harvard subject headings:
Churchill, Winston, 1874-1965--Military leadership.
Great Britain--History, Naval--20th century.
Great Britain. Royal Navy--History.
World War, 1914-1918--Naval operations, British
World War, 1939-1945--Naval operations, British.
Princeton subject headings:
Churchill, Winston, 1874-1965.
Great Britain--History, Naval--20th century.
Great Britain. Royal Navy--History--20th century.
Roosevelt, Franklin D. (Franklin Delano), 1882-1945.