The clock is ticking. Russia has built up its troops along the border, camouflaging their positions. They have given the same excuse they gave before taking Crimea, military exercises. Do not be surprised if Russia invades Ukraine over the weekend, as they've done all their other invasions. By this time next week Ukraine could no longer exist as a sovereign nation but as a department of Russia.
Putin hasn't been phased a bit by the weak waffling of Obama and his trained clown Kerry.