Columbia subject headings:
Japan--Foreign relations--1989-
Japan--Politics and government--21st century.
National security--Japan--History--21st century.
Harvard subject headings:
Japan--Foreign relations--1989-
Japan--Politics and government--21st century.
National security--Japan
National security--Japan--History--21st century.
Princeton subject headings:
Japan--Foreign relations--1989-
Japan--Politics and government--21st century.
National security--Japan--History--21st century.
National security--Japan.