- 17-18 May 2017, Berlin, Germany
- 19-20 September 2016, New York, USA
- 29 November 2015, Cape Town, South Africa
- 14-15 April 2015, Paris, France
- 15 July 2014, Seattle, USA
- 14 July 2014, Seattle, USA (Retreat)
- January 2014, Cape Town, South Africa
- July 2013, Ottawa, Canada
- July 2013, Ottawa, Canada (Retreat)
- November 2012: Kuala Lumpur, Malaysia
- January2012: Bangkok, Thailand (Retreat)
- January 2012: Bangkok, Thailand
- March / April 2011: Washington DC, USA
- October 2010: Johannesburg, South Africa
- May 2010: Hanoi, Viet Nam
- November 2009: Geneva, Switzerland
- March 2009: Rio de Janeiro, Brazil
- October 2008: Bagamoyo, Tanzania
- May 2008: Cairo, Egypt
- October 2007: Berlin, Germany
- April 2007: Geneva, Switzerland
- November 2006: Jakarta, Indonesia
- April 2006: Abuja, Nigeria
- November 2005: Assisi, Italy
- May 2005: Addis Ababa, Ethiopia
- October 2004: Beijing, China
- March 2004: New Delhi, India
- October 2003: The Hague, Netherlands
- April 2003: Brasilia, Brazil
- October 2002: Cape Town, South Africa
- February 2002: Osaka, Japan
- October 2001: Washington DC, USA [.pdf]
- February 2001: Bellagio, Italy