Columbia subject headings:
Harvard subject headings:
Mass suicide--Japan--Ryukyu Islands--History--20th century.
World War, 1939-1945--Atrocities--Japan--Ryukyu Islands.
World War, 1939-1945--Campaigns--Japan--Okinawa Island.
Princeton subject headings:
Japan--History--1926-1945.
Japan--History--Allied occupation, 1945-1952.
Mass suicide--Japan--Okinawa-ken.
Okinawa-ken (Japan)--History.
World War, 1939-1945--Atrocities--Japan.