What actions did unions use to achieve their goals?

Some tactics that the unions use to achieve their goals were slow down the Unions would sometimes tell their workers to slow down production to push management so they can give them what they want. another one is sick out which is when numerous workers just call in sick on one day

abolishing slavery, made it so that the southerns new that when they joined the US slavery would no longer exist.

uuum how? to take a test for you or

the railroad administration