so it's an absolutely fundamental principle of international order that is at stake. so it's far more than ukraine. we care about ukraine, but it's far more than ukraine that is at stake. sergey radchenko, you're russian—born and you can — obviously don't speak for the russian government — but you can give us some insights perhaps into the russians�* perspective on this. what do you read into the russian build—up of troops? is itjust posturing and trying to blackmail the west or is there real danger there, do you think? i mean, i think putin is not adversed to brinkmanship. i think he does engage in brinkmanship. but i would not say that he's bluffing. you've got a massive build—up of military forces and it's like anton chekhov said. — "from act one, you have a gun on the stage, "in act three, it is bound to go off." so i would not underestimate what we're seeing now with russia, but that said, i would say that putin has not made up his mind.