Uncharted and uncomfortable in European defence
January 2022
Uncharted and uncomfortable in European defence
The EU’s mutual assistance clause of Article 42(7)
Bob Deen, Dick Zandee & Adája Stoetman

Disclaimer: The research for and production of this report has been conducted within the PROGRESS research framework agreement. Responsibility for the contents and for the opinions expressed, rests solely with the authors and does not constitute, nor should be construed as, an endorsement by the Netherlands Ministries of Foreign Affairs and Defence.

About the authors


Bob Deen is Coordinator of the Clingendael Russia and Eastern Europe Centre (CREEC) and Senior Research Fellow in the Security Unit of the Clingendael Institute. His research centres on international security issues and multilateral cooperation, with a particular focus on Eastern Europe, Russia, the Caucasus and Central Asia.

Dick Zandee is Head of the Security Unit at the Clingendael Institute. His research focuses on European security and defence issues, EU-NATO, military forces and capability development, defence industry and other security topics.

Adája Stoetman is Research Fellow at the Security Unit of the Clingendael Institute. Her research focuses on security and defence issues as well as strategic foresight. Her area of expertise is European defence cooperation.

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