Tom Middendorp

Senior Research Associate
Associates are experts in their own field and contractually affiliated with Clingendael. Although associates are not employees of the Clingendael Institute, they comply with all policies that Clingendael staff do.


  • Security and Defence
  • Sustainability


  • Americas
  • Europe
  • The Netherlands

Tom was The Netherlands Chief of Defence for five and a half years and spent 38 years serving his country. He commanded soldiers on all levels, led a large multinational taskforce in the south of Afghanistan and was involved in over twenty different military missions as the Director of Operations. Tom led the Defence organisation through an intense period of transition and has extensive operational and strategic experience of building unity of effort with different nations, governmental- and non-governmental organisations, international institutions, and civil stakeholders in order to deal with a wide range of security risks. He joined Clingendael as a Senior Research Associate and is Chairman of the International Military Council on Climate and Security. He is also the Netherlands’ Special Envoy on European Defence Cooperation and a Senior Advisor in the areas of security, defence and strategic leadership.

My work



Europe in the World

World Climate and Security Report 2020

13 February 2020 - 16:15

How Climate Change Fuels Violent Extremism

10 October 2019 - 16:43

Climate Change Increases Likelihood of Violent Extremism

01 October 2019 - 17:38
Europe and the EU

Don’t leave climate to the environment ministers

29 July 2019 - 17:13


Conflict and Fragility

Public Meeting: Climate and Security in the Sahel region

14 November 2019 - 17:00