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European Security No. 049 May 20, 2026
Updated Jun 23, 2026

NATO's Eastern Flank: From Reassurance to Deterrence by Denial

Forward presence is no longer symbolic. The doctrinal shift on the eastern flank is reshaping every alliance member's force posture. Reading time 13 min

Dr. Anna Kowalski
Dr. Anna Kowalski
Senior Fellow, European Security · Former NATO Advisor
NATO's Eastern Flank: From Reassurance to Deterrence by Denial

Forward presence is no longer symbolic. The doctrinal shift on the eastern flank is reshaping every alliance member's force posture.

Article body to be added by editorial team.

NATO Eastern Flank Deterrence
Dr. Anna Kowalski
Dr. Anna Kowalski
Senior Fellow, European Security · Former NATO Advisor

Defense and security analyst specializing in European strategic policy, NATO transformation, and transatlantic relations. Former researcher at the International Institute for Strategic Studies (IISS) and visiting fellow at the Centre for European Policy Studies. Based in Brussels.

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