Columbia subject headings:
Portugal--Foreign relations--South Africa.
Portugal--Foreign relations--Zimbabwe.
Portugal--Foreign relations.
Portugal--Military policy.
South Africa--Foreign relations--Portugal.
South Africa--Military policy.
Zimbabwe--Foreign relations--Portugal.
Zimbabwe--Military policy.
Harvard subject headings:
Portugal--Foreign relations--South Africa.
Portugal--Foreign relations--Zimbabwe.
Portugal--Military policy.
South Africa--Foreign relations--Portugal.
South Africa--Military policy.
Zimbabwe--Foreign relations--Portugal.
Zimbabwe--Military policy.
Princeton subject headings:
Portugal--Colonies--Africa--History, Military--20th century.
Portugal--Foreign relations--1933-1974.
Portugal--Foreign relations--South Africa.
Portugal--Foreign relations--Zimbabwe.
South Africa--Foreign relations--1961-1978.
South Africa--Foreign relations--Portugal.
South Africa--Foreign relations--Zimbabwe.
Zimbabwe--Foreign relations--1965-1980.
Zimbabwe--Foreign relations--Portugal.
Zimbabwe--Foreign relations--South Africa.