Columbia subject headings:
Harvard subject headings:
Syria--Foreign relations.
Syria--History--Civil War, 2011-
Syria--Politics and government--2000-
Princeton subject headings:
Ethnic conflict--Syria.
Peace-building--Syria.
Syria--History--Civil War, 2011-
Syria--History--Civil War, 2011---Participation, Foreign.
Syria--Politics and government--2000-
World politics.