Columbia subject headings:
World War, 1939-1945--Europe, Eastern.
World War, 1939-1945--Underground movements--Greece.
Harvard subject headings:
Europe, Eastern--Foreign relations--Great Britain.
Great Britain--Foreign relations--Europe, Eastern.
Great Britain--Foreign relations--Greece.
World War, 1939-1945--Europe, Eastern.
World War, 1939-1945--Underground movements--Greece.
Princeton subject headings:
Balkan Peninsula--History--20th century.
Europe, Central--History.
Europe, Eastern--History.
World War, 1939-1945--Diplomatic history.
World War, 1939-1945--Europe.
World War, 1939-1945--Great Britain.