Columbia subject headings:
Harvard subject headings:
Lebanon--Foreign relations--Syria.
Lebanon--History--Civil War, 1975---Foreign participation, Syrian.
Lebanon--History--Civil War, 1975-1990--Participation, Syrian.
Syria--Foreign relations--Lebanon.
Princeton subject headings:
Lebanon--Foreign relations--Syria.
Lebanon--History--Civil War, 1975-1990--Foreign participation, Syrian.
Syria--Foreign relations--Lebanon.