Throughout the years, Ms. Vlietstra has held many positions that make her well-suited as a jury member for the UCLG City of Bogotá Peace Prize. In her long career in local governance in the Netherlands, she has been mayor of several municipalities. Furthermore, she has been member of the Senate of the Netherlands from 2011-2015. As Vice-President of the Platform for Municipal Peace Policy she was instrumental in establishing contacts with Eastern European cities in the early 1990s, and in developing a close relationship with the city of Srebrenica after the conflict in Bosnia-Herzegovina. Ms. Vlietstra has been a member of the International Advisory Commission of the Committee on European and International Affairs of the Association of Netherlands Municipalities. Throughout her career and to this present day, she has been involved in many other political and advisory positions, for example as Deputy Member of the Committee of the Regions and as member of the Supervisory Board of the Talent for Governance programme of the Hague Academy for Local Governance, providing training programmes to talented civil servants from developing countries.