 In 1935 Magdeleine Paz joined the "Comité de liaison contre la guerre et l‟union sacrée" (Liaison committee against war and the "union sacrée"), a pacifist organization.In the early 1930s Magdeleine Paz became a member of the "Ligue des droits de l’Homme" (League of Human Rights), representing the Socialist Party.The "Cahiers" of the League refused to publish an article by Magdeleine Paz in which she denounced the Moscow Trials held between 1936 and 1938.