Columbia subject headings:
Afghanistan--History--Soviet occupation, 1979-1989.
Soviet Union--Territorial expansion.
World politics--1975-1985.
Harvard subject headings:
Afghanistan--History--Soviet occupation, 1979-1989.
Soviet Union--Territorial expansion.
World politics--1975-1985
Princeton subject headings:
Afghanistan--History--Soviet occupation, 1979-1989.
Soviet Union--Territorial expansion.
World politics--1975-1985.