Columbia subject headings:
Harvard subject headings:
Nigeria, Southwest--History, Military.
Yoruba (African people)--History--19th century.
Yoruba (African people)--Politics and government.
Yoruba (African people)--Warfare.
Princeton subject headings:
Nigeria--History, Military.
Yoruba (African people)--History--19th century.
Yoruba (African people)--Politics and government.