Side by side … the British and French peoples have advanced to rescue … mankind from the foulest and most soul-destroying tyranny which has ever darkened and stained the pages of history. Behind them … gather a group of shattered States and bludgeoned races: the Czechs, the Poles, the Norwegians, the Danes, the Dutch, the Belgians — upon all of whom the long night of barbarism will descend, unbroken even by a star of hope, unless we conquer, as conquer we must; as conquer we shall.

Radio broadcast, Be Ye Men of Valour, May 19, 1940 .