In this file picture taken on July 2, 2005 a Turkish woman wearing a headscarf walks past posters sporting a woman veiled by the European Union flag in central Istanbul. Five years after a “big bang” took the European Union deep behind the former Iron Curtain, enlargement fatigue, worsened by the economic crisis, has gripped the bloc. Institutional hurdles and divisions over whether mainly Muslim Turkey should be allowed in have added to fallout from the financial turmoil to dampen enthusiasm for Europe, to the detriment of Balkan nations that want to join. (Photo credit should read CEM TURKEL/AFP/Getty Images)