Columbia subject headings:
Harvard subject headings:
Allegiance--Germany--History--Congresses.
Germany--Armed Forces--History--Congresses.
Germany--Politics and government--Congresses.
Patriotism--Germany--History--Congresses.
Princeton subject headings:
Allegiance--Germany.
Allegiance.
Loyalty.
Political culture--Germany--History.
Sociology, Military--Germany--History.