they regretted having agreed to the Federation taking over their publication. The coming-together of anarchists with socialists and moderates ended after one year. At the FOA's second congress, a dispute over the admission of delegates who were not members of the unions they represented escalated into chaotic and angry shouting and the moderates left. The socialists' departure left the anarchists in full control of the Federation. They decided to end cooperation with the Socialist Party and to employ boycotts in labor disputes. The moderates formed the General Workers' Union (UGT) as a rival union federation in 1903. A cycle of class struggles from 1902 to 1908 followed the formation of the FOA. This wave of strikes was not so much a result of the labor movement's ideology as of increased immigration and rising costs of living. A 1902 strike by the stevedores in Rosario turned into a general strike. In November of the same year, the Buenos Aires dock workers gained the nine-hour-day. The most important strike of this year, that of the fruit handlers, was about to involve the whole membership of the FOA at the height of the harvest, but the government passed the Residence Law—which allowed the expulsion of subversive foreigners—to break it. In 1903 and 1904, Argentina saw no less than twelve general strikes and many more at individual plants, with the FOA being involved in many of them. At the 1903 FOA May Day demonstration, a clash with police left two dead and twenty-four wounded. At a bakers' strike in Rosario, one worker was shot by police. 1905 congress and further radicalization At the FOA's fifth congress in 1905, it renamed itself FORA, the Argentine Regional Workers' Federation, to express its anti-nationalism. It also passed a resolution declaring "[t]hat it advises and recommends the widest possible study and propaganda to all its adherents with the object of teaching the workers the economic and philosophical principles of anarchist communism" becoming the programmatic basis of the union for the following years and reflecting the radicalization of the preceding. Anarchist communism became the sole doctrine in the FORA, causing statist socialists to leave the union. The FORA continued to grow quite rapidly, reaching a peak at 30,000 members in 1906. In 1909, however, its moderate wing left the organization to found the Argentine Regional Workers' Confederation (CORA) with syndicalists from the UGT. At the First International Syndicalist Congress