the united states really didnt back up hazm at all. i dont call few dozen tow missiles and set number of bullets per month as support. they also watched as nusra surrounded hazm bases and they didnt nothing.
Now if hazm was the ypg the americans would have sent b1 lancers to back them up. The gist in all this is pretty simple. obama doesnt believe in the rebels. he never did and he never will. all this train and equip is just a smokescreen for what he truly believes in.
assad ruling syria with iran providing stability for it. that's obama's wish pretty much