The United Kingdom was included in the 19th G7 summit.
19th G7 summit . The Group of Seven ( G7 ) was an unofficial forum which brought together the heads of the richest industrialized countries : France , Germany , Italy , Japan , the United Kingdom , the United States , Canada ( since 1976 ) and the President of the European Commission ( starting officially in 1981 ) . United Kingdom . The UK is also a member of the Commonwealth of Nations , the Council of Europe , the G7 finance ministers , the G7 forum , the G20 , NATO , the Organisation for Economic Co-operation and Development ( OECD ) , and the World Trade Organization ( WTO ) .