NATO's New Theory of Victory Signals Hardening Deterrence

The Warning Is the Weapon

Alexus Grynkewich is not expected to announce anything new about NATO’s military plans. The alliance has guarded its deterrence doctrine tightly for decades — deliberately so. But the act of articulating a “theory of victory” at a public security conference in Warsaw is itself a strategic decision. It marks the first time NATO’s top military commander has framed the alliance’s posture in overtly winning terms rather than purely defensive language.

The distinction matters. For years, NATO officials have carefully described their posture as deterrent — designed to make aggression seem futile without ever claiming they would “win” a conflict with Russia. Grynkewich’s framing, as relayed by his spokesman Colonel Martin O’Donnell, says something different: that the alliance is setting conditions now to deter aggression and “if necessary, win if attacked.” That conditional clause — if necessary — sits uneasily beside NATO’s long-standing insistence that it has no intention of attacking Russia. It is a semantic tightrope that could tighten or snap depending on how Moscow interprets it.

What makes this moment distinctive is not merely the language but the venue. The Warsaw conference has become the de facto annual gathering where transatlantic security architecture is rehearsed and recalibrated. Every line in Grynkewich’s remarks was chosen with an audience of both allies and adversaries in mind. The Russian embassy in Poland will be parsing each sentence. NATO’s eastern flank will be measuring whether their anxieties are finally being taken seriously at the highest levels.

The Hybrid Threat Is the Real Test

The timing of this rhetorical hardening is not coincidental. Western officials have been increasingly alarmist about what they call Russia’s escalating “hybrid” campaign against NATO members supporting Ukraine. The most conspicuous incident — the discovery of an explosive-laden drone at a German airport — is exactly the kind of provocation that falls into the gray zone NATO has struggled to define and counter. But it is hardly the only one. Over the past eighteen months, intelligence agencies across the alliance have documented a pattern: sabotage plots thwarted in the Balkans, unmarked vessels lingering near undersea cables, disinformation campaigns amplified through state-backed media networks, and suspicious deaths of dissenting voices from Moscow to Prague.

Traditional deterrence theory works against conventional military threats: you make the cost of invasion clearly exceed the potential gain. But hybrid attacks — sabotage, covert operations, assassination attempts, cyber intrusions — do not trigger Article 5. They exist below the threshold of armed conflict by design. A drone with explosives found in a civilian airport does not constitute an armed attack, yet it carries the same intent to intimidate and disrupt. The problem compounds when the actor denying responsibility is simultaneously the only party with the capability to carry it out.

Grynkewich’s theory of victory, whatever specific details remain undisclosed, appears to be an attempt to bridge that gap. By publicly declaring that NATO is prepared to win if attacked — and by linking that declaration to the broader context of hybrid threats — the alliance is signaling that the threshold for collective response may be shifting. Whether that shift is deliberate or merely rhetorical remains to be seen, but the mere suggestion is already changing behavior on the ground. Several Baltic states have accelerated perimeter security around critical infrastructure. Germany has expanded its cybersecurity mandate for airports. Finland has begun integrating its border guard operations more closely with NATO structures.

Europe’s Anxiety About America

The harder message in Grynkewich’s intervention is aimed not at Moscow but at NATO’s eastern flank and at European capitals watching Washington with growing uncertainty. The Pentagon is currently conducting a review of its troop deployments across Europe. The results, expected toward the end of the year, could entail significant reductions — a scenario made more likely by President Donald Trump’s long-standing skepticism toward alliance commitments and repeated suggestions that European nations should bear more of the burden themselves. Defense Secretary Pete Hegseth has already signaled that the baseline posture — the minimum force required to deter Russia — should be reassessed in light of fiscal pressures and shifting strategic priorities.

This is the context in which Grynkewich’s theory of victory gains its sharpest edge. European defense ministers are already rushing to bolster their militaries, but the coordination and speed of that effort depend heavily on whether NATO’s eastern members feel the alliance’s deterrent is credible without American forces deployed at current levels. A public theory of victory helps hold that confidence together — but only if it is backed by concrete capability increases that have yet to materialize. Sweden, which joined the alliance in 2024, has committed to reaching 2 percent of GDP on defense by 2027. Finland has announced a doubling of its defense budget over five years. Poland has fast-tracked procurement of American Abrams tanks and Korean K2 black Panthers. But these are national decisions, not alliance-wide guarantees.

The second-order effects are already visible. Defense contractors across Europe are reporting order backlogs extending into 2028. Ammunition stocks deemed unsustainable after the Ukraine war began are being replenished at a pace not seen since the Cold War. Yet the structural gaps remain: air defense interceptors are still in short supply, integrated command-and-control systems are fragmented, and the industrial base for long-range precision fires has barely begun to scale. Grynkewich’s words may reassure, but reassurance does not stop drones.

Who Wins, Who Loses, What Comes Next

The immediate winners from this rhetorical shift are NATO’s eastern members — Poland, the Baltic states, Finland — who have long argued that the alliance’s deterrence posture was too abstract and too patient. For them, Grynkewich’s language validates a year of lobbying for a harder line. The losers are Russian officials who now face a publicly stated NATO willingness to frame conflict in terms of winning rather than merely deterring. That recalibration will be felt most acutely in Moscow’s calculus around hybrid operations, which have grown bolder precisely because they have faced no proportional response.

The more consequential question is what happens next. If the theory of victory translates into accelerated military aid to Ukraine — and into clearer rules of engagement for responding to hybrid attacks on NATO territory — the dynamics of the war could shift in Kyiv’s favor. Russian forces have already stretched their supply lines thin across eastern Ukraine. Additional Western materiel, particularly in the air defense and precision-strike domains, could further degrade their ability to sustain offensive operations. The theory of victory, if operationalized, would give NATO governments the political cover to greenlight transfers that have previously been held back by escalation anxieties.

Mark Rutte’s recent advice to allies to “keep calm, carry on and support Ukraine” while acknowledging that “they know we are stronger” reflects the same calculation. NATO is trying to project resolve without provoking escalation — a balance that has grown harder to strike as Russia’s hybrid operations become more reckless and more dangerous. The alliance’s challenge is to make that projection credible without accidentally creating the very crisis it seeks to prevent.

The theory of victory will be elaborated in Warsaw in the days ahead. Whatever specifics emerge — whether they include new frameworks for counting hybrid acts as collective responses, revised deployment postures, or accelerated industrial mobilization plans — the broader signal is already clear. NATO is done waiting for Russia to set the terms of deterrence. The question now is whether the alliance can back its new language with the capabilities and cohesion to match.