 In 1937, as the result of a political amnesty, he was released from prison and banished to the penal colony on the island of Ponza.When Mussolini was forced to resign on July 25, 1943, Li Causi stayed in the penal colony on the island of Ventotene, 40 kilometres to the east of Ponza.After his release, he went north to join the resistance against the German occupation and remaining Italian fascists.