Meanwhile to Reuters reports that the decision was made by Washington, probably due to the fact that last month the terrorists attacked the positions of the armed opposition in northern Syria and seized weapons, ammunition and materiel. Representatives of the US intelligence community "suspect" that individual members of the Syrian armed opposition have contacts with terrorists from ISIS and Dzhebhat-en-Nusra (* both of these groups are banned in the Russian Federation).
Apparently, earlier - when out of several hundreds of armed “oppositionists” trained in Turkey, 99% of their composition switched to the side of ISIL (*), along with weapons and ammunition - the US intelligence community did not suspect ... Or, the US intelligence community prepared armed people for their subsequent transition to the side of the terrorists, and now trying to play back?
It should be noted that after the freezing of military aid from Washington, the armed opposition will not remain without supplies. Such countries as, for example, Turkey and Qatar are not ready to refuse military assistance.