It was the Autumn Revolution, a popular uprising in 1989, that led to a bow-out of the East German Government and the fall of the 140-km-long Berlin Wall surrounding West Berlin. At that moment, half a century of Cold War division came to an end. I recall those icy cold winter days when I had just moved to Europe. For leaders of the unified Germany, they seemed truly challenging. One leader who stands tall is the Federal Chancellor, Mr Helmut Kohl. He deserves great credit and will be remembered as the chancellor who brought German unification.