http://www.aljazeera.com/news/2017/12/isil-weapons-traced-saudi-arabia-171214164431586.html
Weapons supplied by the United States and Saudi Arabia to opposition fighters often fell into the hands of ISIL, significantly enhancing the "quantity and quality" of the group's armaments, a new report alleges.
The number of weapons goes "far beyond those that would have been available through battle capture alone", according to the study by arms-monitoring group Conflict Armament Research (CAR) published on Thursday.