I'm curious to understand the purpose of the Commonwealth of Nations. I understand the origins of the Commonwealth come from Britain's former Empire whereas many of the members of the Commonwealth are territories which had historically come under British rule at various times by settlement, conquest or cession. However, I don't see how the Commonwealth relates to the established independent governments of its members. And, I believe the Queen of England is at the head of the Commonwealth? Does the Commonwealth perform more in ceremony of its past relationships or possibly serve as a conduit for trade among countries or ....