Further to what anon said:
The attack in Syria was done as the Cabal through the Uranium 1 deal knew they now had cause to prove, or at least claim, Russia was providing weapons grade material to Iran when
in actual fact they were smuggling these materials in themselves through their proxy states and Israel. So Trump went along with their planned FF to get things going but instead Trump went in and bombed the WMD factory Syria and Russia knew and had retreated from the area, they said some face saving claims in the media "Next time we'll…." and that's Russia freed from this part of their scheme.