Belgian founder of the Centre dâAction InteralliĂ© de la RĂ©sistance (CAIR), later the Union Internationale de la RĂ©sistance et de la DĂ©portation (UIRD), of which he is also general delegate, founder of the Union des RĂ©sistants pour une Europe Unie and president of the ComitĂ© International dâExperts pour la lutte contre le nĂ©o-nazisme.