Columbia subject headings:
Africa--History--1960-
United Nations--Africa.
United Nations--Peacekeeping forces--Africa.
Harvard subject headings:
Africa--History--1960-
Africa--Politics and government--1960-
Conflict management--Africa--1960-
International cooperation.
International relations
United Nations--Peacekeeping forces--Africa.
Princeton subject headings:
Africa--History--1960-
United Nations--Peacekeeping forces--Africa.