2017
Elisabeth Rehn
Defense Minister of Finland (1990-1995)
Condoleezza Rice
US National Security Advisor (2001-2005)
US Secretary of State (2005-2009)
2018
Anson Chan
Chief Secretary of Hong Kong (1993-2001)
Carlos Gianelli
Uruguayan Ambassador to the US (2015 - present)
Dan Quayle
US Vice President (1989-1993)
Varia Vīķe-Freiberga
President of Latvia (1999-2007)
2019
Simon Adams
Executive Director-Global Centre for the Responsibility to Protect
F.W. de Klerk
President of South Africa (1989-1994)
Louise Frechette
United Nations Deputy Secretary-General (1997-2006)
Guillaume Long
Minister of Culture and Heritage of Ecuador (2016-2016)
Foreign Minister of Ecuador (2016-2017)
2020
Jose Ramos-Horta
Nobel Peace Prize Laureate (1996)
President of the Republic of Timor-Leete (2017-2012)
PJ Patterson
Prime Minister of Jamaica (1992-2006)
2021
Mohamed ElBaradei
Director of International Atomic Energy Agency (1997-2009)
Nobel Peace Prize Laureate (2005)
Interim Vice President of Egypt (2013)
2022
Lawrence Gonzi
Former Prime Minister of Malta (2004-2013)
2023
Amanda Ellis
Deputy Secretary-International Development and Head of New Zealand Aid (2010-2013); New Zealand Head of Mission and Ambassador to the United Nations in Geneva (2013-2016)
Benjamin Freakley
Lieutenant General, U.S. Army (Ret)
Michael Polt
US Ambassador to Serbia and Montenegro (2004-2006); US Ambassador to Serbia (2006-2007); US Ambassador to Estonia (2009-2012)