The common wealth is an association of
all former Colonies of Britain
that are now independent:

Benefits of the
member state of the common wealth are as follow: 
  1. There is easy communication and understanding among them because
    all member states have English as their official language. 
  2. Trade among member nations are done under
    favourable terms. 
  3. As a big family,
    member state aid each other. 
  4. There
    is the opportunity for citizens of some
    member countries to visit-others
    without visa. 
  5. The legal system of member nations are similar. 
  6. Promotion of democratic values among
    member states.
  7. There is existence of closer relationship among
    member states.