▁led ▁by ▁A hm ad ▁Jar ba , ▁joined ▁the ▁S DF . ▁While ▁some ▁of ▁its ▁members ▁already ▁had ▁earlier ▁defect ed ▁and ▁joined ▁the ▁S DF , ▁the ▁event ▁was ▁called ▁a ▁major ▁political ▁coup ▁for ▁the ▁S DF , ▁as ▁Jar ba ▁was ▁the ▁former ▁President ▁of ▁the ▁National ▁Co al ition ▁for ▁Sy rian ▁Revolution ary ▁and ▁O pp osition ▁Forces ▁and ▁now ▁agreed ▁to ▁work ▁with ▁the ▁Sy rian ▁Democratic ▁Council ▁framework ▁instead . ▁ ▁On ▁ 1 4 ▁October ▁ 2 0 1 6 , ▁the ▁Free ▁Offic ers ▁Union , ▁led ▁by ▁H uss am ▁Aw ak , ▁said ▁to ▁number ▁in ▁the ▁hundreds ▁joined ▁the ▁S DF . ▁ ▁On ▁ 3 1 ▁October ▁ 2 0 1 6 , ▁an ▁all - f em ale ▁batt alion ▁was ▁established ▁within ' ▁the ▁al - B ab ▁Military ▁Council . ▁ ▁On ▁ 8 ▁December ▁ 2 0 1 6 , ▁the ▁De ir ▁ez - Z or ▁Military ▁Council ▁was ▁established . ▁The ▁found ing ▁members ▁consist ▁of ▁rem n ants ▁of ▁the ▁former ▁Free ▁Sy rian ▁Army ▁council ▁of ▁the ▁same ▁name , ▁exp elled ▁from ▁the ▁city ▁by ▁the ▁Islam ic ▁State ▁in ▁ 2 0 1 4 , ▁having ▁joined ▁the ▁S DF ▁in ▁November ▁ 2 0 1 6 . ▁▁ 2 0 1 7 ▁ ▁According ▁to ▁a ▁March ▁ 2 0 1 7 ▁statement ▁of ▁the ▁Sp okes man ▁for ▁the ▁International ▁Co al ition ▁forces , ▁U