SPEECH BY MR. CHRISTOPHER TUGENDHAT, VICE-PRESIDENT OF THE COMMISSION OF THE EUROPEAN COMMUNITIES, AT A DINNER IN THE GREAT HALL OF QUEEN'S UNIVERSITY, BELFAST, TO MARK THE TENTH ANNIVERSARY OF THE FIRST ENLARGEMENT OF THE EUROPEAN COMMUNITY, ON THURSDAY, 27 JANUARY 1983. NORTHERN IRELAND AND THE EUROPEAN COMMUNITY (1983)