Strikebreakers (scabs) were workers who crossed picket lines or were hired to replace striking employees during Gilded Age labor disputes, giving management a powerful weapon to break strikes and weaken unions in the labor-versus-capital battles of APUSH Topic 6.7 (KC-6.1.II.C).
Strikebreakers, called "scabs" by union members, were people who kept working during a strike or were brought in to replace the strikers entirely. Think of a strike as a bet. Workers walk off the job, gambling that the company can't run without them. Strikebreakers were management's way of winning that bet. If a railroad or steel mill could keep operating with replacement labor, the strike collapsed, and the union with it.
This tactic exploded during the Gilded Age (1865-1898) because industrial capitalism kept the supply of desperate workers high. The CED notes that the industrial workforce expanded rapidly (KC-6.1.II.B.i), fed by immigrants and migrants who would take almost any job. Employers often recruited strikebreakers from groups excluded by white unions, including African Americans and recent immigrants, which turned labor conflicts into racial and ethnic conflicts too. The result was exactly what KC-6.1.II.C describes, labor and management battling over wages and working conditions, with strikebreakers frequently sparking the violence that made strikes like the Great Railroad Strike of 1877 and Homestead so explosive.
Strikebreakers live in Topic 6.7, Labor in the Gilded Age (Unit 6), and support learning objective APUSH 6.7.A, explaining socioeconomic continuities and changes tied to the growth of industrial capitalism from 1865 to 1898. The term is your evidence for KC-6.1.II.C, the labor-management battle. Unions tried strikes and collective bargaining; management answered with strikebreakers, lockouts, and private security. Strikebreakers also explain why most Gilded Age strikes failed. The government usually sided with business, courts issued injunctions, and replacement workers were always available, so unions had little leverage. That pattern connects to the Work, Exchange, and Technology (WXT) theme and sets up the contrast with the 1930s, when New Deal laws finally gave unions legal protection.
Keep studying APUSH Unit 6
Labor Unions and Collective Bargaining (Unit 6)
Strikebreakers were the direct counter-move to union power. A strike only works if the company can't replace you, so the constant availability of replacement workers is a big reason Gilded Age unions like the Knights of Labor lost most of their major confrontations.
Great Railroad Strike of 1877 (Unit 6)
When railroads tried to keep trains running during the 1877 strike, clashes between strikers, replacements, and state militias turned deadly. It's the classic example of how strikebreaking escalated labor disputes into violence requiring federal troops.
Lockout (Unit 6)
Lockouts and strikebreakers were two halves of the same management playbook. A company could lock union workers out of the plant, then hire scabs to run it, which is exactly what Carnegie and Frick did at Homestead in 1892.
African Americans in the Labor Force (Units 5-6)
Because many white-led unions excluded Black workers, employers recruited African Americans as strikebreakers, sometimes their only path into industrial jobs. This deepened racial divisions within the working class and weakened labor solidarity for decades.
You'll most likely see strikebreakers in Unit 6 multiple-choice and short-answer questions built around an excerpt from a striking worker, a union leader, or a newspaper covering a strike. The skill being tested is explaining why labor organizing largely failed in the Gilded Age, and "employers could hire replacement workers" is one of the strongest answers. No released FRQ has used the word "scab" verbatim, but the concept supports LEQ and DBQ arguments about labor and capital from 1865 to 1898, especially prompts asking you to evaluate the effectiveness of workers' responses to industrialization. Use strikebreakers as specific evidence for management's advantages, and pair them with examples like the Great Railroad Strike of 1877 or Homestead for maximum credit.
Both are management tactics, but they work in opposite directions. In a strike, workers refuse to work and the company may hire strikebreakers to replace them. In a lockout, the company strikes first by barring workers from the workplace, often to force them to accept wage cuts or abandon the union. Homestead (1892) shows them combined, a lockout followed by replacement workers and Pinkerton guards.
Strikebreakers, or scabs, were workers who continued working during a strike or were hired to replace striking workers, undermining the strike's power.
The tactic thrived in the Gilded Age because a rapidly expanding industrial workforce (KC-6.1.II.B.i) meant employers could almost always find replacement labor.
Strikebreakers are core evidence for KC-6.1.II.C, the ongoing battle between labor and management over wages and working conditions from 1865 to 1898.
Employers often recruited strikebreakers from groups excluded by unions, especially African Americans and immigrants, which fueled racial and ethnic tension inside the working class.
The availability of strikebreakers, combined with government and court support for business, is a major reason most Gilded Age strikes failed.
On the exam, use strikebreakers to explain management's advantages in labor disputes and to support arguments about the limits of Gilded Age unionization.
Strikebreakers, nicknamed scabs, were workers who kept working during a strike or were hired to replace strikers. In APUSH they appear in Topic 6.7 as a key management weapon in Gilded Age labor conflicts (1865-1898).
No. Hiring replacement workers was completely legal, and courts and the federal government usually backed employers, not unions. There were no federal protections for strikers until New Deal labor legislation in the 1930s.
A strikebreaker replaces workers who walked off the job; a lockout is when the employer bars workers from the workplace to force concessions. At Homestead in 1892, Carnegie Steel used both, locking out union workers and then bringing in replacements.
Many white-led unions refused to admit Black workers, so strikebreaking was sometimes the only way African Americans could get industrial jobs. Employers exploited this exclusion, which deepened racial divisions within the labor movement.
A strike only works if the company can't operate without its workers. With a huge pool of immigrants and unemployed laborers willing to take jobs, employers could keep factories and railroads running, which drained strikes of their leverage.
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