LONDON -- On Jan. 22, two of the world's leading powers celebrated the 40th anniversary of a remarkable reconciliation. At the historic Palace of Versailles, France's President Jacques Chirac and Germany's Chancellor Gerhard Schroeder toasted a treaty signed in 1963 by their visionary predecessors, Charles de Gaulle and Konrad Adenauer. After three fierce wars between 1870 and 1945, new leaders resolved this must never happen again. Ancient enemies had to learn to become best friends.