Answer:
The main motives of national unions are to gain security , better compensation , better work culture and atmosphere etc for the labourers . They work for the benefits of labourers and protect them from exploitations such as very low wages , poor working conditions etc . These are the some common demands . Apart from these workers in hazardous industries and other risky jobs also require insurance and wage premiums . Such demands are also made by unions .
Two most important tools implemented by unions are : collective bargaining and strikes . Collective bargainig refers to negotiation process with employers . When bargaining fails workers hold strikes to stop the production process and force the management to listen to their demands .
Corporations are profit making organizations . If they provide extra benefits to workers that increases their costs of production and reduces profits . so their prime motive is to provide as much low wages as possible and spend as much less as possible on the production process , working conditions etc . So they adamantly oppose unions .