Replying to H.Insider. There are sources, you just have to do a tiny bit of work. Try googling US Virginia senator Richard Black (Republican)  former marine pilot, Vietnam War, former prosecutor with the US Army Judge Advocate General's Corps, former head of the US ARMY'S CRIMINAL LAW DIVISION AT THE PENTAGON. Not good enough for you? Try independent journalists Eva Bartlett (Canadian), Vanessa Beeley (British), and Robert Fisk who has a life-time of reporting from the mid-east including from front lines of the Iran-Iraq War, Afghanistan during the Russian war there, from Iraq after the US/Brit led Gulf War. These reporters have all had their feet on the ground in Syria and/or Aleppo. Sadly, I doubt that this information will have the slightest impact - there are none so blind as those that, willfully, will not hear, listen, or read widely.