 He was disappointed when others were named to these posts, and Warner retired from the Diplomatic Service in 1975, reasoning that it would be easier for him to start a second career as early as possible.He then went into business, becoming a business consultant and Director of Globalstar Telecommunications Ltd.He later picked up directorships of the Mercantile and General Reinsurance Company Ltd, Chloride Group Ltd, Guinness Peat Group, Loral International Inc., and Vicarello SpA.