"There is also documentation of what may be weapons transfers between the IDF and members of the Syrian opposition. One report provided details of the evening of January 20, 2015, in which “UNDOF observed two trucks crossing from the Bravo [Syrian] side to the Alpha [Israeli] side, where they were received by IDF personnel. The trucks were loaded with sacks before returning to the Bravo [Syrian] side.” On another occasion trucks with anti-aircraft guns parked near the fence on the Syrian side, but the terrain blocked the view of UNDOF observers so they could not determine the extent of “interaction between individuals on each side of the line.” "As a result many analysts doubt the Israeli government’s claim that it is steering clear of Nusra." (thanks Amir)