Syria : what was the role of foreign fighters in the latest battles ?

Damascus stirred back to life on Monday at the start of a hopeful but uncertain era after rebels seized the capital and President Bashar al-Assad fled to Russia, following 13 years of civil war and more than 50 years of his family’s brutal rule. There are a number of foreign fighters in Syria. What are they doing at this point in time? Answer and exclusive images with FRANCE 24 terrorism specialist, Wassim Nasr.