Brussels, 17/09/2012 (Agence Europe) - The European Union is preparing to add another official day to its calendar, European Cooperation Day, under this year's slogan of “Sharing borders, growing closer”. It will be celebrated for the first time on 21 September, with more than 160 events organised in 40 countries to present initiatives bringing local communities together across borders. Official presentation, however, of this new European official day will already be taking place next...