Falange Española de las JONS the Second Spanish Republic. Expanding rapidly from several thousand to several hundred thousand members, the Falange's male membership was accompanied by a female auxiliary, the "Sección Femenina". Led by José Antonio's sister Pilar, this latter subsidiary organization claimed more than a half million members by the end of the Civil War and provided nursing and support services for the Nationalist forces. The command of the party rested upon Manuel Hedilla as many of the first generation leaders were dead or incarcerated by the Republicans. Among them was José Antonio Primo de Rivera, who was a Government prisoner. As a result,
Francisco Largo Caballero succeeded him as head of the party and of the UGT. Moderate in his positions at the beginning of his political life, he advocated maintaining a degree of UGT cooperation with the dictatorial government of General Miguel Primo de Rivera, which permitted the union to continue functioning under his military dictatorship (that lasted from 1923 to 1930). This was the start of his political conflict with Indalecio Prieto, who opposed all collaboration with the dictatorial regime. He was Minister of Labor Relations between 1931 and 1933, in the first governments of the Second Spanish Republic, headed by Niceto Alcalá-Zamora, and