Prime Minister Harold Wilson (standing centre) , speaking to an international conference of newspaper editors from Britain and the six market countries at the Cafe Royal in London . During his speech the Premier said Britain will negotiate for entry in the common market 'with the real and determined purpose of succeeding and to make a reality of our membership .' Other with him on the platform are left to right: Mr Hermann Proebst , (Suddeustsche Zeitung , Munich) ; Mr Hugh Cudlipp (Chairman IPC ), Mr Wilson ; Sir Eric Roll , Chairman ; John Beavan , Daily Mirror ; Mr Pierre Drouin, Le Monde , Paris) ; and Mr Kurt Grunebaum of Le Peuple, Brussels . 13th January 1970