Commonwealth of Nations
The Commonwealth comprises 53 countries, across all continents. The members have a combined population of 2.4 billion people, almost a third of the world population, of which 1.26 billion live in India, 220 million live in Pakistan and 94% live in Asia and Africa combined. After India, the next-largest Commonwealth countries by population are Pakistan (220 million ), Nigeria (170 million), Bangladesh (156 million), and the United Kingdom (65 million). Tuvalu is the smallest member, with about 10,000 people.
Commonwealth free trade
Britain's entry into the European Economic Community (EEC) in 1973, and its evolution as a member state of the European Union (EU) has meant that for practical purposes, the United Kingdom cannot independently enter into negotiations with Commonwealth states to establish a free trade agreement. Instead, the EU, as a representative of all its members, negotiates collectively. However, after the decision on 23 June 2016 by Britain to leave the EU and as the Article 50 of the EU's Lisbon Treaty has been invoked, Britain may be able to negotiate its own trade deals.