French President Nicolas Sarkozy and World War II veterans have visited London to mark the 70th anniversary of Charles de Gaulle’s rousing radio appeal to his compatriots to resist the Nazi occupation. On June 18, 1940, four days after the fall of Paris and as the French government prepared to sign an armistice with Germany, the exiled military leader issued an impassioned appeal over the BBC airwaves to those back home.’ Whatever happens, the flame of the French resistance must not and will not be extinguished,’ de Gaulle said.