Columbia subject headings:
Harvard subject headings:
Internal security--Japan--History
Japan--History, Military--1868-1945.
Japan--Politics and government--1926-1945.
Japan. Rikugun--Political activity.
Police--Japan--History
Princeton subject headings:
Internal security--Japan--History.
Japan--History, Military--1868-1945.
Japan--Politics and government--1926-1945.
Japan. Rikugun--Political activity.
Police--Japan--History.