The role and advantage of human resources and how important it is to have it in a company

After general intruduction about human resources: 1. 3200 words should talk about the role and advantage of human resources and how important it is to have it in a company ( other topics related to human resources you can chose) 2. at the end, before the conclusion, 800 words have to be work related ( real life experience example of a human resource department from a company I am working at. invent an experience for at an company I am working at and the company is an import and export company, working with electric equipment and real estate, buliding and buldingmaschines in different countries, headoffice in germany)