Personally, I am concerned. I am concerned due to the fact that it truly seems that Europe has not yet learned to live with each other yet. Eastern and Western Europe might as well be on different planets at times and the reinvigorated Visegrad Alliance is proof of this issue. Now I want to be clear here, I am not saying that Junker will assemble the jackboots and make a move on Poland. Unless there are restrictions on the operational capacity within Europe though, I can see situations developing in the future that can lead to Soviet style intervention. Additionally, how will the V4 and Russia see this move? The V4 already feel as though they under threat and now there is a military agreement to contend with, a reactionary response to the right seems inevitable now in those regions unless they can objectively analyze the situation and pick a more rational diplomatic pathway. With Russia...it was one thing to deal with NATO because the US still has to cross an ocean in order to bring its full force to bear. How Putin will react to this is anyone's guess but if you think it will be a peaceful approach I'd have to call you very naive. In the end I have concerns about this new agreement moving forward. What happens in 20, 50, 100 years from now if European countries decide that their sovereignty is more important than EU membership?