The correct answer is settling disputes between striking workers and business owners
The labor unions have as their main objective the defense of the economic, professional, social and political interests of their members. The workers unions are also responsible for organizing strikes and demonstrations aimed at improving the wage and working conditions of the category.
A person should take care of his needs before his wants = true
I'm not completely sure of this since there is no given dates or country, but it may be the Civil War Conscription Laws.