Kill 100 millions russians, all military infrastructure and teach them to respect sensei. They bluff, because they sre shitting their pants against America. It's sad, the russian land is so beautiful in spring... those kremlins goons are always creating problems...
Putin is not as short tempered as Trump. If he wants retaliation, then he will do it calmly and intelligently. In the end Trump will beg for forgiveness, just like the goat fucker Recep Tayyip Erdogan.
Trump can afford temper. For Trump all power America and a lot of allies in the world. And who is behind Putin? A weak army with old weapons. Putin never fights with equal opponents. Putin is same PR like Trump but without the support in the world.