It pitted Hostile_encounter the American Railway Union ( ARU ) against the Pullman Company , the main railroads , and the federal government of the United States under President Grover Cleveland .

Founded Creating in 1893 by Eugene V. Debs , the ARU was an organization of unskilled railroad workers .

Debs brought in Bringing ARU organizers to Pullman and signed up Employment many of the disgruntled factory workers .

When the Pullman Company refused Agree_or_refuse_to_act recognition of the ARU or any negotiations , ARU called a strike Attack against the factory , but it showed no sign of success .

When the Pullman Company refused Agree_or_refuse_to_act recognition of the ARU or any negotiations , ARU called a strike Attack against the factory , but it showed no sign of success .

Debs and the ARU called Request a massive boycott against all trains that carried a Pullman car .

Defended Defending by a team including Clarence Darrow , Debs was convicted Legal_rulings of violating a court order and sentenced to prison ; the ARU then dissolved Dispersal .