How did carnegies company break the union at homestead mills?

Carnegie's company broke the union at the Homestead mills in 1892 through a combination of aggressive tactics, including the hiring of Pinkerton detectives to confront striking workers and the establishment of a fortified barricade around the mill. The company also implemented wage cuts and refused to negotiate, leading to violent clashes. Ultimately, the strike was crushed, and the union was significantly weakened, allowing Carnegie Steel to assert greater control over labor conditions. This event marked a pivotal moment in labor relations in the United States.