NATO's New Policy on Reservists and Reserve Forces in View of Reviewing the Allied Defence and Deterrence Posture

Abstract: This article explores NATO’s new policy on reservists and reserve forces, contextualized within the review of the Alliance’s defense and deterrence posture following recent geopolitical changes and Russia’s aggression against Ukraine. The study analyzes the evolution of NATO’s strategic approach to reserves through key documents, notably MC 0441/2 and the new MC 0441/3. It emphasizes the growing importance of reservists in strengthening resilience, interoperability, and the adoption of a “Whole-of-Society” civil–military approach. The research examines concrete measures taken at the Allied level to implement the new policy and identifies recommendations for optimizing the integration of reserves within NATO’s defense and deterrence framework. It concludes that the updated policy represents a fundamental shift in how the Alliance conceptualizes collective defense and societal resilience, transforming reserves from a supplementary capability into a strategic component of Allied deterrence.

Keywords: NATO, Reservists, Reserve Forces, Defense And Deterrence, Collective Security, Interoperability, Societal Resilience, MC 0441/3, Integrated Civil–Military Approach