Career diplomat. 1991-97, Head, Disarmament, Arms Control and Cooperative Security, NATO; 1997-2000, chairperson, negotiations on the adaptation of the Treaty on Conventional Armed Forces in Europe; 2000-02, Permanent Representative of Italy to Executive Council, Organization for the Prohibition of Chemical Weapons, The Hague; 2002-06, Director, Conflict Prevention Centre, Organization for Security and Co-operation in Europe (OSCE); 2008-11, UN Special Representative for Kosovo and Head, United Nations Interim Administration Mission in Kosovo (UNMIK); since July 2011, Secretary General, OSCE.