Columbia subject headings:
Harvard subject headings:
Germany (East)--Armed Forces--Military police--History--Sources.
Germany (East)--History, Military--Sources.
Germany (East)--Military policy--Sources.
Germany (East). Nationale Volksarmee--Civic action--History.
Internal security--Germany (East)--History.
Princeton subject headings:
Germany (East)--History, Military--Sources.
Germany (East). Nationale Volksarmee--History--Sources.