OK Juhani, why is the West (ie the USA) dallying? From what I have heard, they could cripple Russia overnight economically if they wanted to (by freezing out key industrial businesses from global banking), but so far nothing ...
It is obvious Putin has designs over all of Ukraine, not just the Russian half. And Western governments would know this. They could stop it instantly, or in a slightly longer arc as the US fracking gas industry would wish, but they do nothing.