Ughhh... Just more bluster.
So far as I know, the Russian S-400 missile system is to the Tomahawk cruise missile what the F16 is to the B-17 bomber. The United States probably has much more sophisticated toys in its armory, but what is being positioned on the Russian border is antiquated, if the lamestream news and "leaks" to the alternative media are to be trusted. (You might want to research what happened to the USS Donald Cook.) The bottom line is that Putin and Trump are playing a "bad cop, good cop" game, the same one played by Obama and Putin in 2013. (Bad cop- we're going to nuke syria; Good cop- we're going to bring the world away from brinksmanship, get Assad to relinquish his chemical weapons, and have peace. Worked like a charm: Obama looked like an idiot, Putin the hero.)
All of this is just so much blustering and smoke. The real action is occurring in two places: The Global economy is going down the toilet and the banks are running out of paper, and Pizzagate is exposing that these leaders are slimeballs. Everything else at this point is a dog and pony show timed for when the SHTF, which could be any day now, as the black swans in the derivatives market (think: Deutschebank) are multiplying faster than rabbits in springtime. Things have been non-stop since mid-March.
It's the economy, stupid...
And it's pizzagate... Screwtape was wrong... apparently human stupidity just might have limits. Somebody figured out that even Obama is not such an idiot that he would have hot dogs shipped in from Chicago... when everybody knows Washingtonians make the best wieners in the world.
Our Lady of Fatima, pray for us, you are our only hope.