Columbia subject headings:
Germany--Armed Forces--History--20th century.
Germany. Heer--History--20th century.
Russia. Armii︠a︡--History--20th century.
Soviet Union--Armed Forces--History--20th century.
World War, 1939-1945--Atrocities.
World War, 1939-1945--Campaigns--Soviet Union.
Harvard subject headings:
Germany--Armed Forces--History--20th century.
Germany. Wehrmacht--History--20th century.
Russia. Armii︠a︡--History--20th century.
Soviet Union--Armed Forces--History.
World War, 1939-1945--Atrocities.
World War, 1939-1945--Campaigns--Soviet Union.
Princeton subject headings:
Germany--Armed Forces--History--20th century.
Germany. Heer--History--20th century.
Russia. Armii︠a︡--History--20th century.
Soviet Union--Armed Forces--History--20th century.
World War, 1939-1945--Atrocities.
World War, 1939-1945--Campaigns--Soviet Union.