Christopher joined the Foreign and Commonwealth Office in 1970 and his diplomatic career included: Second, then First, Secretary, New Delhi, 1972; First Secretary, FCO, 1976; Deputy Head of Mission, Lusaka, 1980; FCO, 1983; on secondment to Cabinet Office, 1985; Counsellor: Madrid, 1987; FCO, 1991; Ambassador to Ethiopia, 1994–97; Ambassador to Indonesia, 1997–2000; Ambassador to Argentina,…