Columbia subject headings:
Germany--Boundaries.
Germany--History, Military--20th century.
Germany--History--1918-1933.
Germany. Reichswehrministerium--History.
World War, 1914-1918--Territorial questions--Germany.
Harvard subject headings:
Border patrols--Germany.
Germany--Defenses--History.
Germany--Military policy--20th century.
Germany--Politics and government--1918-1933
Germany. Reichswehr--History.
Princeton subject headings:
Germany--Defenses--History.
Germany--Politics and government--1918-1933.