Comment: This is a weak threat! What is this? Reverse psychology by the Russians? They won't do anything and they know it,because president Trump is in charge. They need to remember this president is not the "Lead from The Behind president" Obama!  Remember the Russian first telling the US to get out of the way during the Obama administration? Huh? Remember? 
All these problems stemming in Syria is the result of an inept ,failure to engage president. He could have solved that situation,but choose to draw a "Redline".which is why we are there today. That same rule also applies to North Korea,he did nothing but Talk! And look what's happening there. "All Talk and No Action" politicians. smh.
So don't blame Trump for wiping up his mess. Along with all the doom and gloom and WW-3? The Dems own this one! They created this mess!  IMUA!