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ZITTAU, GERMANY - MAY 1: (L-R) Czech Republic Prime Minister Vladimir Spidla, German Chancellor Gerhard Schroeder, Polish Prime Minister Leszek Miller and European Union enlargement commissioner Guenter Verheugen wave to the crowd during a ceremony marking the expansion of the EU May 1, 2004 in Zittau, Germany. The three heads of state celebrated the first day of an expanded EU by walking across the borders between Poland, the Czech Republic and Germany, and jointly hoisting an EU flag. (Photo Sean Gallup/Getty Images)