Columbia subject headings:
Harvard subject headings:
Defense industries--Japan--History--20th century.
Defense industries--Japan--History--21st century.
Japan--Defenses--History--20th century.
Japan--Defenses--History--21st century.
Princeton subject headings:
Defense industries--Japan--History--20th century.
Defense industries--Japan--History--21st century.
Japan--Defenses--History--20th century.
Japan--Defenses--History--21st century.