A US labour dispute. It was the bitter climax of deteriorating relations between the Carnegie Steel Company at Homestead, outside Pittsburgh, run by Henry Clay Frick, and the Amalgamated Association of Iron and Steel Workers, who had refused to accept a disadvantageous new contract and ordered a strike. When Frick imported 300 Pinkerton detectives to protect the plant and the non-union workers, they were repulsed in an armed battle in which several people were killed. The state governor introduced state militia to restore order, and the strike failed. The union collapsed after the anarchist Alexander Berkman tried to kill Frick, and unionism in the industry was seriously weakened until the 1930s.