Columbia subject headings:
Balkan Peninsula--History--War of 1912-1913.
Europe--Politics and government--1871-1918.
Germany--History, Military--20th century.
Harvard subject headings:
Balkan Peninsula--History--War of 1912-1913.
Europe--Politics and government--1871-1918.
Germany--History, Military--20th century.
Princeton subject headings:
Europe--Politics and government--1871-1918.
Germany--Foreign relations--1888-1918.
Germany--Military policy--History.
Germany. Heer--History.
World War, 1914-1918--Germany.