In the great public square of the ancient city of Liege, in Belgium, a troop of Belgian Boy Scouts stood at attention. Staffs in hand, clad in the short knickerbockers, the khaki shirts and the wide campaign hats that mark the Boy Scout all over the world, they were enough of a spectacle to draw the attention of the busy citizens of Liege, who stopped to watch them admiringly. Their scoutmaster, Armand Van Verde, had been addressing them. And now in the fading light of the late afternoon, he dismissed them.