The unionized workers at Homestead refused to accept a 22% wage reduction and resisted the company's attempt to replace them with non-union workers. The company responded by hiring 300 Pinkerton detectives to guard the steel mill and forcibly remove any workers who resisted. On the morning of July 6, 1892, the Pinkerton detectives arrived on barges at the Homestead Works and tried to land, but were met by armed union members and townspeople who began firing on them. The resulting battle, known as the Battle of Homestead, lasted for several hours and left seven Pinkerton detectives and two union members dead.
The state of Pennsylvania sent in the National Guard to restore order, and the strike ended on November 20, 1892, when the union agreed to accept the wage reduction and the company's right to hire non-union workers. The strike became a symbol of the conflict between labor and management during the late 19th century and the struggle of workers' rights.