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Commentary

Violations of NATO airspace: How to restore deterrence

The recent violations of Allied airspace represent an unprecedented escalation of tensions between NATO and Russia. Matus Halas writes that NATO must try to protect its airspace against unauthorised activities, but the inconsistency of approach within NATO makes deterrence harder. While different incursions must be treated differently, there needs to be consistency both over time and across member states.

22 October 2025 | Matus Halas
Person

Matus Halas

Matus Halas is a senior researcher and Head of the Centre for European Politics at the Institute of International Relations in Prague. Previously, he taught strategy at the Baltic Defence College in Estonia and conducted research at the National War College in Washington and École de guerre in...

Policy brief

Widening the ceasefire toolkit: The promise of geophysical monitoring in Ukraine and beyond

Any monitoring mission deployed to observe an end to the hostilities in Ukraine is likely to incorporate a range of remote-sensing technologies to support its verification activities. Drawing on insights from the Norwegian research institute NORSAR’s real-time monitoring of the 2022 Ukraine conflict, this policy brief by Ben D.E. Dando, Kjølv Egeland, and Sebastian Schutte, finds that scientific advances and a growing availability of relevant data have made ‘seismo-acoustic’ analysis a cost-effective means of complementing, backing up, and in some cases replacing other ceasefire monitoring technologies.

17 October 2025 | Kjølv Egeland, Ben Dando and Sebastian Schutte
Podcast

The Women Leaders podcast: Mired in the Middle East

In light of the recent Gaza ceasefire, ELN Senior Associate Fellow Ilana Bet-El is joined by a Palestinian and an Israeli – Dr Tahani Mustafa (ECFR) and Dr Miriam Rosman (Dvorah Forum) – for a frank and raw discussion that lays bare both the hope and the deep divisions that persist in the Israel-Palestine conflict.

17 October 2025 | Ilana Bet-El and Florence Ferrando
Person

Sebastian Schutte

Sebastian Schutte is a research professor at the Peace Research Institute Oslo (PRIO). Sebastian’s research investigates political violence, insurgencies, and civil wars using spatial and quantitative methods. He holds a PhD in political science from ETH Zürich and master’s degrees from the...

Person

Ben Dando

Ben Dando is Head of Department for Test Ban Treaty Verification at NORSAR. Ben has extensive experience in seismic monitoring with application to explosions, natural seismicity, and induced seismicity. He has designed, led, and implemented novel seismic monitoring strategies for both research...