Columbia subject headings:
Harvard subject headings:
Japan--Foreign relations--Korea.
Japan--Foreign relations--To 794.
Kaya (Confederation)
Korea--Foreign relations--Japan.
Korea--Foreign relations--To 935.
Princeton subject headings:
Japan--Foreign relations--Korea.
Japan--Foreign relations--To 794.
Kaya (Confederation)
Korea--Foreign relations--Japan.
Korea--Foreign relations--To 935.