ARU meaning in Community ?

The American Railway Union (ARU) was briefly among the largest labor unions of its time and one of the first industrial unions in the United States. Launched at a meeting held in Chicago in February 1893, the ARU won an early victory in a strike on the Great Northern Railroad in the summer of 1893. This successful strike was followed by the bitter 1894 Pullman Strike in which government troops and the power of the judiciary were enlisted against the ARU, ending with the jailing of the union's leadership for six months in 1895 and effectively crushing the organization. The group's blacklisted and dispirited remnants finally disbanded the organization via amalgamation into the Social Democracy of America (SDA) at its founding convention in June 1897.