An international arms monitor has reported that US military weapons that were covertly provided to Syrian rebel groups were in the hands of Daesh within two months of their delivery.
The study was conducted by the UK-based Conflict Armament Research (CAR) and funded by the European Union and the German government. CAR studied 40,000 weapons recovered from Daesh since 2014 and found that a large amount of them were US arms given or sold to Syrian rebel groups.
In one case, an arsenal including anti-tank weapons switched hands from the US to Syrian rebels to Daesh in only a two month period.