All this which are taking place is may be already agreed upon between the major parties, and played out, there seems to be a order too in the sequences of things thats happening. Can we assume that Mr. Erdogan bought the Syrian top military notch, informed US, Isreal, may be Isreal places a condition that Golan heights or a small part would be my flesh, considered and agreed, than having a whole Syria in turmoil, and having the refugees resettled, its a worthy price to be paid. Until Isreal consolidates, no pact between Turkey and Syria, and inorder to make sure that ISIS or other terrorists groups do not avail the left behind weapons in this period Israel bombards and destroyes them consistently, without giving them any space. The Americans and Turkey would have placed how the solution with the sdf should go, most of the areas in their hold freed, particularly bordering Turkey, for the rest a semi autonomous agreement can be arranged, and also the United states take in future Syria, whether they preferred to stay or leave. Than when things started moving they informed the Russians and Iranians it's fruitless, defending your man, already it's tumbling like a pack of cards, don't try we would have our relations intake. All targets achieved Russia, Iran gone, Assad too, everyone is on a win win situation, on the other side. Does it make sense?