In 1897, he volunteered to fight against the Turks in the thirty-day Turkish-Greek war in the irregular legion of Giuseppe Garibaldi's son, Ricciotti Garibaldi, for the liberation of Crete. Former Fasci-leader and fellow defendant in the 1894 Palermo trial Giuseppe De Felice Giuffrida and the anarchist Amilcare Cipriani also volunteered. Returning to Italy in 1898, he was again sentenced to a year imprisonment for subversive activity.