Okay, we can leave it at that.  I do not believe that Putin is in the least cowed by the US.  If Hillary insists on instituting a no-fly zone over Syria to protect the terrorist insurgents and prolong the suffering of the Syrian civilians, we will see dog fights between American and Russian jets.  If Russian jets prevail, we will eat crow.  If American jets prevail and Hillary refuses to back off, Putin will take out the responsible aircraft carrier which is a sitting duck to an adversary with modern war making capability.  The US will have essentially no options except a "trade embargo."  The false presumption that tactics that work against an Iraq will work against a real adversary is seductive and sorry experience may be necessary to discredit it.