 Complete the following phrase:  Acland was Principal Private Secretary to the Foreign Secretary Sir Alec Douglas-Home, then James Callaghan 197275. He was Ambassador to Luxembourg 197577 and to Spain 197779. He was Deputy Under-Secretary at the FCO 197982, a post which then entailed chairing the Joint Intelligence Committee. In 1982 he was promoted to Permanent Under-Secretary and head of the Diplomatic Service. 