Columbia subject headings:
Harvard subject headings:
Japan--History--1868-
Korea--History.
Manchuria (China)--History--1931-1945.
Ryukyu Islands--History
Princeton subject headings:
Japan--Colonies--History.
Japan--Foreign relations--1989-
Korea--History--Japanese occupation, 1910-1945.
Manchoukuo--History.
Ryukyu Islands--History.