Al-Ayari served in France as a soldier during the First World War. On many occasions he got into trouble with his officers and boasted about his insubordination while in the ranks. He returned to Tunisia as a committed Leftist and found work as a Tramway employee. He quickly became one of the rare native leaders of the French labor union and of the newly formed Communist Party. His oratorical abilities and intelligence attracted the attention of French Leftists in Tunisia and his independent spirit clashed with his superiors at the Tramway Company, who fired him. The French Union thereafter put him on its payroll as a full time organizer and scores of French police reports demonstrate that he attended most Communist Party and union meetings where he spoke frequently. When the CGTT formed in 1924 Al-Ayari became a major organizer and leader of the new formation along with M’Hamed ‘Ali and Tahar Haddad. He, along with M’Hamed Ali were exiled from Tunisia in 1925 for ten years. He ended up working on a Cairo trolley and died in Paris, never returning to his native land. Because of his adhesion to the Communist Party of Tunisia and his homosexuality he has received little attention from historians of the labor movement, who have downplayed his contributions. I intend to explain his important role as a mass leader and place him in his rightful place alongside M. ‘Ali and Haddad.