Toward Hybrid Deterrence: Conceptual Foundations and the Evolution of NATO Response
Hybrid threats, leveraging ambiguity and asymmetry, increasingly challenge NATO’s deterrence and credibility. This paper critically examines NATO’s doctrinal evolution and responses to hybrid threats since first acknowledging cyber challenges in 2002. Despite doctrinal progress and tools like Counter-Hybrid Support Teams (CHSTs) and initiatives such as Baltic Sentry, NATO’s response remains largely reactive and fragmented, activated only post-crisis rather than proactively deterring threats. Ambiguous attribution and contested thresholds further hinder collective action. The analysis highlights persistent strategic gaps and concludes by asserting that credible hybrid deterrence cannot be improvised post hoc but must be embedded systematically into NATO’s doctrine and operational architecture, a concept that will be further developed in a forthcoming companion article.