The problem is political, it is not shortage of planes, tanks and missiles. Europe has more and better military hardware than Russia in every category except SAMs.
The challange is EU governments and armies don't act in unison.
I agree with your point on the political challenges, but not with your point on military hardware. There was a recent report on the French military by the rand corporation that stated that France wouldn't be able to sustain a long conflict [1], and the Franco-British intervention in Libya was critically dependent on US logistics and intelligence. I don't think that it is the european armies that provide the Baltic states any comfort right now.
Thank you for the link, haven't had a chance to read it yet, but this seems to talk about opearting in a distant theater while the scenario here is 'home turf' and we would be adding up 27 countries that make up Europe?