U.S. labor strike at A. Carnegie's steelworks in Homestead, Pa., in July 1892. When the Amalgamated Assn. of Iron and Steel Workers went on strike following a wage cut, the company's manager, H. C. Frick, hired strikebreakers, with Pinkerton Agency detectives to protect them. A gun battle resulted, in which several people were killed and many injured; the governor sent state militiamen to support the company. The broken strike represented a major setback to the union movement that was felt for decades.