Kristin Ven Bruusgaard, the director of the Norwegian Intelligence School, has cautioned that NATO allies must be prepared for Russia to potentially cross the nuclear threshold should a direct armed conflict erupt between Russia and the North Atlantic Treaty Organization. These significant remarks were made during her participation at the Atlantic Future Forum in Oslo, held aboard the British warship HMS Prince of Wales.
During a discussion focused on how to impose costs on Russia without inadvertently triggering an escalation, Bruusgaard underscored the inherent difficulties in such a strategy. She stated, “it might not be possible to avoid escalation” as a crisis unfolds, emphasizing that Russian military doctrine assigns a substantial potential role to nuclear weapons in the event of an all-out confrontation with NATO. Her explicit warning was clear: “we need to be basically prepared for Russia also actually crossing the nuclear threshold in the event that we get into a sort of a firing war.” This assessment highlights a critical and challenging aspect of contemporary deterrence and conflict management.
Bruusgaard, a respected scholar specializing in Russian nuclear strategy, further delved into the complexities of “sub-threshold” attacks – actions that fall below the traditional definition of armed conflict but are designed to achieve strategic objectives. She suggested that a perceived lack of robust, unified responsive action across the alliance could inadvertently contribute to the continuation of Russia’s aggressive campaigns below the level of direct military engagement. In light of this, she advocated for more vigorous and transparent internal discussions within NATO, stating, “I think that we should be having that discussion even more actively and perhaps even more openly.” Such discussions would likely center on defining red lines, developing effective deterrence strategies for hybrid threats, and establishing clear protocols for collective responses to grey-zone activities, which often involve cyberattacks, disinformation campaigns, and economic coercion.
A key geographical area of strategic importance, according to Bruusgaard, is the Northern Fleet, which she identified as hosting a significant portion of Russia’s secure second-strike capability. A “second-strike capability” refers to a country’s ability to retaliate with nuclear weapons even after absorbing a first nuclear strike from an adversary. This capability is considered crucial for maintaining nuclear deterrence, as it assures an aggressor that an attack would be met with devastating retaliation. Historically, the presence of this capability in the Northern Fleet has contributed to relatively low regional tensions. However, Bruusgaard warned that in a full-blown crisis, the Arctic and Northern regions would rapidly become vital to Moscow’s strategic calculations, implying that the regional dynamic could shift “rapidly and dramatically.” This underscores the escalating geopolitical significance of the Arctic, particularly concerning military posture and resource competition.
Bruusgaard also highlighted a fundamental asymmetry between Russian and NATO strategic approaches. She observed that Russia tends to lean on nuclear and non-conventional tools for coercion – encompassing a wide range of tactics from cyber warfare and political interference to the potential threat of tactical nuclear weapons – while NATO predominantly relies on its conventional military capabilities. This divergence, she argued, creates a significant risk of misperception. The lack of a shared understanding of what constitutes an unacceptable act or a clear threshold for escalation means that “we don’t necessarily know exactly where our own red lines are,” further complicating deterrence and crisis management. This ambiguity can lead to dangerous miscalculations, where one side’s defensive posture might be perceived as aggressive by the other, or where a limited action could unintentionally trigger a disproportionate response.
Despite these concerns, Bruusgaard expressed a nuanced view on Russia’s perception of NATO unity. “I’ve never been entirely convinced of the argument that Russia believes NATO unity is an easy target,” she stated. She elaborated, “My impression is that they remain relatively concerned with NATO, and that it would take quite a lot for them to conclude that NATO would not respond to an action that they would take.” This perspective suggests that while Russia may test NATO’s cohesion through various means, it ultimately respects the alliance’s collective defense commitment under Article 5. Bruusgaard also pointed to the strengthening effect of bilateral defense agreements, such as those exemplified by the Anglo-French Lancaster House Treaties (often referenced in such contexts, though the original text mentioned ‘Lunna House’, which may refer to a specific Norwegian context or mishearing), which compel Russia to factor in potentially robust responses from individual allies or smaller groups. Britain’s continuous at-sea deterrent, along with its commitment of nuclear forces to NATO, adds another critical layer to this complex relationship, bolstering the alliance’s overall deterrent posture.
Adding to the expert panel discussion, Vice Admiral Rune Andersen, Chief of the Norwegian Joint Headquarters, echoed the sentiment that allies must actively “relearn the art of deterrence and escalation management” particularly in the strategically vital northern regions. This call reflects the evolving nature of warfare and the need for modern militaries to adapt their strategies to address both conventional and non-conventional threats. Concurrently, Britain’s own defense chiefs have issued warnings, asserting that the threat posed by Russia to the United Kingdom is steadily growing, necessitating increased vigilance and preparedness.
Why This Matters
The remarks by Kristin Ven Bruusgaard carry substantial weight, emanating from the director of a NATO-aligned intelligence school and a scholar of Russian nuclear strategy. Her explicit warning about Russia’s potential willingness to cross the nuclear threshold in a direct confrontation with NATO brings to the forefront the gravest aspects of contemporary geopolitical tensions. It underscores that the risk of nuclear escalation, once considered a relic of the Cold War, remains a tangible concern in modern conflict scenarios. This is particularly salient given Russia’s stated military doctrine, which reportedly allows for the use of tactical nuclear weapons in circumstances where the state’s existence is threatened, or to de-escalate a conventional conflict that is going unfavorably. Such doctrines create a dangerous ambiguity that necessitates careful consideration by Western policymakers.
Furthermore, Bruusgaard’s emphasis on the challenge of “sub-threshold” attacks and the need for a more active and open discussion within NATO highlights a critical vulnerability. Hybrid warfare, cyberattacks, and disinformation campaigns can erode national resilience and destabilize alliances without triggering a conventional military response. If NATO fails to develop cohesive and decisive responses to these grey-zone tactics, it risks encouraging further aggression below the threshold of declared war, potentially leading to a gradual erosion of security and influence. The call for clearer “red lines” is crucial for preventing miscalculation, as an ambiguous deterrent can be a weak one.
The strategic importance of the Arctic and the Northern Fleet, as highlighted by Bruusgaard, underscores the evolving geopolitical landscape. As climate change opens new shipping routes and access to resources, and as Russia continues to militarize the region, the Arctic is becoming a new flashpoint. Understanding the Northern Fleet’s role in Russia’s second-strike capability is vital for assessing Moscow’s strategic priorities and for developing effective deterrence and defense strategies in this critical region. The comments by Vice Admiral Rune Andersen further reinforce the urgency for NATO allies to adapt their understanding and practice of deterrence, particularly in areas like the High North, where geographical proximity and strategic assets amplify potential risks.
Finally, the nuanced perspective on NATO unity — that Russia, despite probing, remains wary of the alliance’s collective response — offers a degree of reassurance but also reinforces the imperative for continued cohesion and strength. Bilateral agreements and the commitment of individual nations’ nuclear forces, such as the UK’s continuous at-sea deterrent, contribute significantly to the overall robustness of NATO’s deterrence posture. In an era of heightened geopolitical instability, understanding and preparing for the full spectrum of potential threats, from sub-threshold attacks to nuclear escalation, is paramount for ensuring peace and stability. These expert assessments serve as a critical reminder for policymakers to continuously re-evaluate defense strategies, foster alliance unity, and engage in transparent dialogue to mitigate the risks of miscalculation and conflict.