Columbia subject headings:
Middle East--Foreign relations--Russia (Federation)
Military assistance, Russian--Syria.
Russia (Federation)--Relations--Middle East.
Russia (Federation)--Relations--Syria.
Syria--History--Civil War, 2011-
Syria--Relations--Russia (Federation)
Harvard subject headings:
Middle East--Foreign relations--Russia (Federation).
Military assistance, Russian--Syria.
Russia (Federation)--Relations--Middle East.
Russia (Federation)--Relations--Syria.
Syria--History--Civil War, 2011-
Syria--Relations--Russia (Federation)
Princeton subject headings:
Middle East--Foreign relations--Russia (Federation).
Military assistance, Russian--Syria.
Russia (Federation)--Relations--Middle East.
Russia (Federation)--Relations--Syria.
Syria--History--Civil War, 2011-
Syria--Relations--Russia (Federation).