Foreign Minister, Algeria 1991-1993
UN Special Adviser to the Secretary-General 2004-2005

Foreign Minister, Australia 1988-1996
President and CEO of the International Crisis Group 2000-2009

Austria, Federal Chancellor 2000 – 2007
Foreign Minister 1995 - 2000

President, Botswana 1998-2008

Prime Minister, Canada 1979-1980
Secretary of State for External Affairs 1984-1991

UN Deputy Secretary-General, 1998-2006

Foreign Minister, Côte d'Ivoire 1990-2000
Secretary General, OAU 2001
Chairman, AU Commission 2002-2003

Prime Minister, Denmark 2011-2015

Director General,  International Atomic Energy Agency 1997-2009
Interim Vice President, Egypt 2013

United Nations Under-Secretary-General for Peacekeeping Operations 2011 - 2017

Prime Minister, France 2002-2005

President, Ghana 2001-2009

Vice President, Guatemala, 2004-08
Foreign Minister 1996-2000

Vice President, India 2007–2017
Ambassador to the UN 1993-1995

Attorney General, Indonesia 1999 to 2001
UN Special Rapporteur, DPRK, 2010-16

Prime Minister, Jamaica 1992-2006

President of Latvia, 1999-2007

UN Special Advisor to Secretary-General, 2003-2006
Lebanese Minister of Culture, 2000-2003

President, Liberia 2006-2018

Prime Minister, Malta 2004-2013
Minister of Finance, 2004-2008
Minister of Social Policy, 1998-2004

President, Malawi 2012-2014

President, Mauritius 1992-2002

President, Mexico, 2000-2006

Prime Minister, Mongolia 1998 - 1999
President, Mongolia 2009 - 2017

Prime Minister of New Zealand 1999–2008
Administrator of the UNDP 2009-2017

UN Under-Secretary-General 1999-2007

Minister of Foreign Affairs, Peru 2016-2018

Finance Minister, Rwanda, 1997-2005
President, African Development Bank 2005-2015

Secretary General, Council of the European Union 1999-2009
Secretary General, NATO 1995-1999
Foreign Minister, Spain 1992-1995

Foreign Minister, Spain 2002-2004

Prime Minister, Sweden 1991-1994
Foreign Minister 2006-2014

Minister of Defence, South Africa 1991-1992
Minister of Constitutional Affairs and Communication, 1992-1994
Minister of Constitutional Development and Provincial Affairs, 1994-1996

President of the Swiss Confederation, 2007 and 2011
Head of the Department of Foreign Affairs, 2003-2011

President, Swiss Confederation 1995 & 2002
Defence Minister 1989-1995
Finance Minister 1996-2003

Prime Minister, Tanzania 1984-1985
Secretary-General of the OAU, 1989-2001

Secretary General of UNCTAD, 2005-2013
Director General of WTO, 2002-2005
Deputy Prime Minister, Thailand, 1997-2000

Deputy Prime Minister, Turkey, 1978-79 and 1995
Foreign Minister, 1991-94

Foreign Minister, Uruguay, 1985-1988
President of the Inter-American Development Bank 1988-2005

Minister of Overseas Development, UK 1989-97

Secretary General of NATO 1999-2004
UK Secretary of State for Defence, 1997-1999