Mon 01 Jan 2007Bulgaria, Romania formally join EUMillions of Bulgarians and Romanians awoke today as citizens of the European Union after a night of fireworks and street parties celebrating their countries' entry into the bloc at midnight.Deemed too politically and economically backward for membership during the EU's first eastward expansion in 2004, the Black Sea neighbours squeezed through the door in what political analysts say was the last chance to join this decade.