Anti-union violence

Anti-union violence is physical force intended to harm union officials, union organizers, union members, union sympathizers, or their families. It is most commonly used either during union organizing efforts, or during strikes. The aim most often is to prevent a union from forming, to destroy an existing union, or to reduce the effectiveness of a union or a particular strike action. If strikers prevent people or goods to enter or leave a workplace, violence may be used to allow people and goods to pass the picket line.

Violence against unions may be isolated, or may occur as part of a campaign that includes spying, intimidation, impersonation, disinformation, and sabotage. Violence in labor disputes may be the result of unreasonable polarization, or miscalculation. It may be willful and provoked, or senseless and tragic. On some occasions, violence in labor disputes may be purposeful and calculated, for example the hiring and deployment of goon squads to assault strikers.

Incidents of violence during periods of labor unrest are sometimes perceived differently by different parties. It is sometimes a challenge to ascertain the truth about labor-related violence, and incidents of violence committed by, or in the name of, unions or union workers have occurred as well.

The practice of workers organizing, and meeting resistance for organizing, dates to antiquity. The first known individual killed by authorities for labor activities is likely Cinto Brandini, executed with nine others in 1345 Florence for attempting to organize woolcombers.

According to a study in 1969, the United States has had the bloodiest and most violent labor history of any industrial nation in the world. Mass labor violence in the U.S. peaked in the early 20th century and has largely subsided since the 1940s. But the deadly suppression of labor unions on a large scale persists into the new century, in the 2012 Marikana killings in South Africa, in the ongoing assassinations of trade union members in Colombia, and the South Korean government's response to Korean Confederation of Trade Unions protests.

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