"Further realignment of trade union affiliations appears inevitable. Whether or not this is good for workers is a matter of some debate. But for businesses, the inter-union rivalry is likely to produce a period of industrial relations instability at least until the strength of new union formations has been established. The mining industry in particular has suffered severe labour relations instability since shortly before the Marikana tragedy, in August 2012, and the growing significance of a new mining trade union has presented very significant challenges to collective bargaining in the sector." 2 Although the contributions of trade unions in creating industrial peace are debatable, they play a vital role in the era of industrial democracy. Critically evaluate the reasons why employeesjoin trade unions and discuss the legal rights of trade unions in exercising industrial democracy. Apply relevant legislation to support your discussion