The leader of Syria’s Hayat Tahrir al-Sham (HTS) group, Abu Mohammad al-Jolani, addresses a crowd at the capital’s landmark Umayyad Mosque on December 8.  Maintaining that unity in the face of governance challenges will be the true test for the new leadership. Aref Tammawi/AFP/Getty Images Syrian rebel leader Abu Mohammed al-Golani has dropped that nom […]