BERLIN - OCTOBER 01:  Former German Chancellor Helmut Kohl waves at supporters from his wheelchair upon his arrival at a celebration of the German Christian Democrats (CDU) on October 1, 2010 in Berlin, Germany. The CDU is celebrating the 20th anniversary of the fusion of the West German and East German Christian Democrats in 1990. Germany will mark 20 years since the reunification of East and West Germany on October 3 following the collapse of the East German communist government one year before.  (Photo by Sean Gallup/Getty Images)