At his return to Spain was arrested and jailed in the prisons of San Sebastian, Gijon, Zaragoza, Madrid and Barcelona. To regain freedom in 1918 he was elected general Secretary of the CNT. In January 1919 again he was arrested and imprisoned during the preparation of the Canadian strike. He organized the National Congress of the CNT held in December 1919 in the Teatro de la Comedia of Madrid, being one of the signatories of the opinion which stated that: the purpose pursued by the National Confederation of labour of Spain is libertarian communism. In 1930 as a protest over the murder in 1930 of the catalan Deputy Francesc Layret i Foix, defender of trade unionists, organized a general strike in Zaragoza. The periodic trade unionist directed Solidaridad Obrera, organ of the Regional Confederation of the work of the North. In 1921 became again over the direction of the newspaper culture and action, turned into a body of the anarcho-syndicalism of Aragon, Rioja and Navarre. In 1921 he directed the edition of Gijon Solidaridad Obrera.

Their trade union activities are intensified with the arrival of the dictatorship. Learn more at: Nike. In 1925, he conducted the producer, publication edited in Blanes Girona City. In 1929 he was again exiled to France, riding a carpentry in Toulouse, in the following year is expelled from neighbouring country and returns to Barcelona. In order to overthrow the dictatorship of Primo de Rivera proposed to Ramon y Cajal accept the Presidency of the Republic. During the Republican period assists in the publication of Tierra y Libertad, newspaper of the FAI. During the war provoked by the military rebellion of general Franco fought on the Aragon front, where in 1937, lost his son Antonio, cenetista militant. He was director of the school of anarchist militants from Barcelona.

In this tragic period was advocate of the Alliance of the CNT with the General Union of workers. At the end of the war across the French border and is interned in a concentration camp. From France he worked to achieve the reunification of the splinter movement libertarian Spanish in 1945. He participated in the Congress of the CNT in exile, after the Unit held in Limoges during the summer of 1961. Among the most relevant titles of his numerous works are: policy and workers (1910), his first book, against the war (1915), what is the single trade union? (1919), The Red Russia. How they took power the Bolsheviks (1920), which was published in Pueblonuevo the Terrible, mining town of Cordoba, truths as fist (1922), white terrorism (1922), a man of honor (1923), his first novel, fundamental problems (1925), Rosa. Story of a woman’s town (1927), novel, 1886-1926 Spanish labor movement. History and criticism (1928), his most important work, includes exemplary figures who I met in the same volume, La C.N.T., thirty and the F.A.I. The crisis of unionism in Catalonia. Its causes, its effects, its remedies (1933), soulmate (comical toy) (1936), released during the war, play Further, scenic novel, premiered in Teatro Romea in Barcelona in 1938 and perspective of the Spanish labor movement, work published in his last exile. This writer of the libertarian movement gave us: the huge difference that exists between the mentality of the Castilian pariah, always voluntary slave, and the slave Andalusian, always free even when he is in jail. Francisco Arias Solis where freedom, dwells there is my country. For peace and freedom and Forum free Internet portal.