because they were being treated unfairly, under paid, or health concerns.
Employers didn't want union workers because they would demand better working conditions and better pay.
Any association of workers who want better house, wages and conditions is a union. A popular example of a union in America is the USW or United Steelworkers Union.
Yes, Ford workers are part of the United auto workers union. This union ensures the workers have rights.
This question needs to be rewritten. I can think of union terms for "open/closed" shops, but I am not sure this is what you want.
Workers' Union ended in 1929.
The union workers credit services provides loans to the union workers who pay later at a given interest.
Federal workers do have a union. They filed a law suit for federal workers not being paid overtime. But the union is voluntary.
workers union
Workers' Union was created in 1898.
Union of Djibouti Workers was created in 1992.
Christian Workers' Union was created in 1963.
Moroccan Workers' Union was created in 1955.