Columbia subject headings:
Germany--Foreign relations--Italy.
Germany--Politics and government--1918-1933.
Germany. Heer--History.
Italy--Foreign relations--Germany.
Harvard subject headings:
Germany--History, Military--20th century--Sources.
Germany--History, Military--20th century.
Germany--History--1918-1933--Sources.
Germany--History--1918-1933.
Italy. Regio Esercito. Servizio informazioni militare--Archives.
Princeton subject headings: