 On 28 September 1940, the first broadcast of Radio Belgique was aired.In a radio broadcast on 14 January 1941, de Laveleye asked all Belgians to use the letter "V" as a rallying sign, being the first letter of "victoire" (victory) in French and of "vrijheid" (freedom) in Dutch.This was the beginning of the "V campaign" which saw "V" graffities on the walls of Belgium and later all of Europe and introduced the use of the "V sign" for victory and freedom.