Ambassador John E. Herbst, Director of the Eurasia Center at the Atlantic Council And Hanin Ghaddar, visiting Fellow at the Washington Institute for Near East Policy discuss the complex geopolitical and sectarian dynamics that characterize the bloody conflict in Syria as Shia proxies, Tehran and Moscow intensify their support for President Bashar al Assad, Turkey sends troops over the border and the United States continues to target ISIL and seek common ground with Russia despite their strategic differences in that war-torn country.