Columbia subject headings:
Africa, Sub-Saharan--Foreign relations--1960-
Africa, Sub-Saharan--Politics and government--1960-
Intervention (International law)
Peacekeeping forces--Africa, Sub-Saharan.
Harvard subject headings:
Africa, Sub-Saharan--Foreign relations--1960-
Africa, Sub-Saharan--Politics and government--1960-
Intervention (International law)
Peacekeeping forces--Africa, Sub-Saharan.
Princeton subject headings:
Africa--Politics and government--1960-
Intervention (International law)
Peacekeeping forces--Africa.