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In this June 27, 1989 picture, then Hungarian Foreign Minister Gyula Horn, right, along with his Austrian counterpart Alois Mock cut through the barbed wire of the former Iron Curtain marking the border between East and West in Sopron, Hungary. European leaders gathered in Budapest on Saturday June 27, 2009 to mark the 20th anniversary of the symbolic fall of the Iron Curtain, often described as the first crack in the Berlin Wall and one of the key episodes leading to the end of communism in Eastern Europe. (AP Photo/Bernhard J. Holzner)