2 March, 2026
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14 minutes to read
Ahead of the 2026 Munich Security Conference, many in Europe were closely watching U.S. signals for reassurance after a turbulent period in transatlantic relations. European leaders hoped Washington would reaffirm its commitment to NATO and collective defence, clarify support for Ukraine’s security, and signal continued cooperation on shared global challenges while outlining a more predictable framework for burden-sharing and defence cooperation. Europeans also braced for candid messages about taking greater responsibility for their own defence as U.S. policy under President Donald Trump emphasised transactional ties and prioritised U.S. interests, scaling up debates in Europe about strategic autonomy.
In Munich, U.S. Secretary of State Marco Rubio delivered a speech that impressed many delegates and earned a standing ovation by adopting a more diplomatic and reassuring tone than some of the Trump administration’s previous statements. Rubio framed the United States and Europe as enduring partners, emphasised historical ties, and sought to soothe transatlantic tensions while still reinforcing core Trump administration priorities. Despite the softer delivery, the substance of his address largely echoed the firm stance seen in Vice President J.D. Vance’s 2025 speech and broader Trump policy. However, Trump’s agenda now seemed repackaged and polished, wrapped in classic diplomatic language. However, even Rubio’s speech showed that the questions about the future of transatlantic relations and NATO, as one of the core pillars of that relationship, are profound and existential.
This uncertainty resonates not only for the Allies but also, and perhaps even more deeply, for countries that are not yet members. For decades, NATO has functioned as a security guarantee of the highest order for its members, anchored in the credibility of Article 5 and the assumption that collective defence is automatic, not conditional. Yet growing transatlantic turbulence inevitably raises uncomfortable questions: Is that guarantee still perceived as rock solid, or could the application of Article 5 at some point become politically conditioned, strategically delayed, or subject to negotiation dynamics and internal veto constraints? From the perspective of non-NATO aspirant countries on Europe’s periphery, the stakes are even more existential.
For many states in the Black Sea and South Caucasus regions, NATO represents more than a defence pact. It has symbolized a strategic alternative to Russian dominance. These countries have undertaken costly political reforms, restructured institutions, aligned with Western norms, and absorbed significant economic and security risks in pursuit of eventual integration.
For many states in the Black Sea and South Caucasus regions, NATO represents more than a defence pact. It has symbolized a strategic alternative to Russian dominance. These countries have undertaken costly political reforms, restructured institutions, aligned with Western norms, and absorbed significant economic and security risks in pursuit of eventual integration. The promise was more than membership. It was an escape from a coerced sphere of influence and protection under what was long described as an iron-clad collective defence clause. The unsettling question now is whether that promise remains. Even if a country defeats wild bears, dragons, and hydras on its reform path and eventually reaches NATO membership, does that still equate to an unquestionable guarantee of national security?
This question is profoundly destabilizing because it goes beyond Alliance politics. It touches the strategic psychology of entire regions. If NATO’s security guarantee appears politically contingent or strategically ambiguous, what message does that send to countries still navigating Russian pressure? Is there a realistic alternative to Russia’s sphere of influence, or does geopolitical gravity ultimately prevail? For states on the European periphery, the answer to that question can define their reform incentives, their strategic patience, and their willingness to endure risks in pursuit of Euro-Atlantic integration. Most importantly, it shapes the conditions of the internal political battlefield between autocratic and democratic powers and defines the credibility of arguments about the viability of foreign policy choices.
NATO became both shield and magnet: a shield that provided hard security guarantees to its members, and a magnet that drew neighboring states toward its political and institutional orbit.
For more than seventy years, NATO has anchored European security through the credibility of Article 5, widely understood as a guaranteed collective defence clause rather than a flexible political commitment. Its deterrent force has rested on clarity and predictability. An attack on one would trigger a response from all. That assumption, reinforced over decades, produced one of the most durable security architectures in modern history. NATO became both shield and magnet: a shield that provided hard security guarantees to its members, and a magnet that drew neighboring states toward its political and institutional orbit.
The stabilizing effect of that guarantee is visible in the most tangible way. Russia has never launched a direct military attack against a NATO member state. The contrast between the Baltic states and non-members on Europe’s periphery is instructive. Estonia, Latvia, and Lithuania, once part of the Soviet Union, entered the Alliance and, despite sustained hybrid pressure, have remained free from military invasion. Georgia, Ukraine, and Moldova, remaining outside the Article 5 umbrella, experienced a very different trajectory: war in Georgia in 2008, annexation of Crimea and full-scale invasion of Ukraine, and continued occupation and destabilization in Moldova. The dividing line has not been geography or history – it has been a NATO membership. Undermining the NATO security guarantee is, by design, the destabilizing factor for the European periphery.
If you were inside NATO, deterrence held. But if you stayed outside, you were vulnerable.
For aspirant states, NATO therefore represented more than institutional affiliation. It symbolized an exit from Russia’s sphere of influence. Georgia and Ukraine invested heavily in political reform, defense restructuring, and alignment with Euro-Atlantic standards, yet their momentum toward integration stalled repeatedly, partly due to internal shortcomings and, primarily, to persistent hesitation within the Alliance to provoke Moscow. Moldova adopted a policy of constitutional neutrality, but this did not soften Russia’s posture. Transnistria remains under Russian control, and Moscow continues to apply economic leverage, energy pressure, and political interference to destabilize decision-making in Chișinău. The pattern, thus, was clear: if you were inside NATO, deterrence held. But if you stayed outside, you were vulnerable.
Today, the debate around NATO is no longer about enlargement but about cohesion and direction. The Munich Security Conference 2026 made this tension visible. Critics describe the current U.S. approach as a wrecking ball or a bulldozer, disrupting political, economic, and strategic assumptions that long underpinned the Western-led rules-based international system. Whether pushing forward or rolling back, Washington’s posture has introduced a level of strategic volatility that allies cannot ignore.
Europe cannot generate high-end military capabilities overnight. Advanced air defence systems, long-range strike assets, logistics depth, nuclear umbrella credibility, and rapid deployment capacity require years of investment and industrial coordination. The friction is therefore structural.
Officially, representatives of the Trump administration, including the U.S. permanent representative to NATO, frame current policy as a corrective rather than a rupture. The argument is that the United States is pressing European Allies to assume greater responsibility for their own security. Burden-sharing, they insist, is overdue and necessary given the United States’ desire to rebalance toward other strategic theatres. But the underlying question is whether this is merely about financial contributions or something deeper. Europe cannot generate high-end military capabilities overnight. Advanced air defence systems, long-range strike assets, logistics depth, nuclear umbrella credibility, and rapid deployment capacity require years of investment and industrial coordination. The friction is therefore structural. It is not simply about spending targets but about capability gaps that cannot be closed in the short term. At the same time, transatlantic disagreements over a potential peace settlement in Ukraine and the nature of future security guarantees reveal divergent strategic instincts about deterrence, escalation management, and the role of the Alliance itself.
Some analysts argue that much of what is articulated in high-level forums like Munich is narrative signalling rather than evidence of concrete shifts in U.S. commitment. From this view, statements at conferences often outpace actual policy changes. However, the ongoing restructuring of NATO’s command architecture cuts through the noise. In February 2026, NATO announced that the United States would relinquish leadership of two major operational-level commands – Joint Force Command Norfolk and Joint Force Command Naples – transferring them to European allies, with other commands moving toward European leadership on a rotational basis. In practical terms, this marks a historic redistribution of responsibility within the Alliance and is not easily reversible. This shift has strategic implications: it deepens European operational ownership, tests European command-and-control capacity, and raises important questions about the future role of U.S. military leadership within the Alliance.
If the SACEUR post were ever transferred to a European officer, it would represent a historic shift in NATO’s command structure and a powerful symbolic reduction of direct U.S. conventional leadership in Europe.
While Washington has so far indicated its intention to retain the role of Supreme Allied Commander Europe (SACEUR), a position held exclusively by an American general since Dwight D. Eisenhower first assumed it in 1951, recent reporting suggests that even this long-standing tradition is under consideration for change. If the SACEUR post were ever transferred to a European officer, it would represent a historic shift in NATO’s command structure and a powerful symbolic reduction of direct U.S. conventional leadership in Europe. While some see this as a long-planned evolution toward a more balanced NATO, skeptics interpret it as evidence that the United States is subtly recalibrating its footprint, with lasting effects on alliance cohesion and responsiveness.
More concrete signals amplify the unease. Public remarks by Denmark’s Prime Minister Mette Frederiksen following discussions with the U.S. delegation, including concern that tensions over Greenland remain unresolved, highlight how intra-alliance frictions can acquire strategic significance. Her warning that an attack by one member on another would effectively end NATO underscores how fragile alliance cohesion could become if political trust erodes. Institutional questions, such as the redistribution or handover of key commands, further feed speculation about shifting U.S. priorities. Meanwhile, the NATO defence ministerial meeting in January, just ahead of Munich, placed familiar items on the agenda: investing more in defence, strengthening the defence industrial base, and supporting Ukraine. The Secretary General emphasized unity of vision and a stronger European pillar within NATO.
At the same time, sharp disagreements persist over the possible settlement of the war in Ukraine and the broader approach to addressing the Russian challenge. While official messaging in Munich emphasized unity, visible cracks appeared beneath the surface. Secretary of State Rubio did not directly address Europe’s bloodiest war since World War II in his public remarks and skipped a meeting of European leaders focused specifically on Russia’s aggression against Ukraine, instead departing to meet with Hungary’s Viktor Orbán and Slovakia’s Robert Fico. Both leaders have consistently taken skeptical positions on military support for Kyiv and have advocated approaches more accommodating toward Moscow. These diplomatic choices signal that internal political dynamics within the Alliance are now deeply intertwined with strategic decision-making on Ukraine, complicating the formulation of a coherent deterrence posture toward Russia.
Yet deterrence operates as much on perception as on treaty text. The question is not whether Article 5 exists, but whether it is still understood as automatic in practice.
Against this backdrop, the central issue is not institutional collapse but perceived credibility. Article 5 remains intact legally. No formal revisions have been proposed. No member has withdrawn from the collective defence commitment. Yet deterrence operates as much on perception as on treaty text. The question is not whether Article 5 exists, but whether it is still understood as automatic in practice.
For decades, the power of Article 5 derived from strategic clarity. It was assumed that aggression against one member would trigger a collective response without political bargaining. That assumption shaped Moscow’s calculus and constrained escalation. Today, however, louder debates about burden sharing, strategic autonomy, conditional commitments, and transactional alliances introduce ambiguity into that clarity. Even if unintended, political rhetoric suggesting that commitments depend on performance or financial contributions inevitably raises questions about whether collective defence could become politically conditioned in practice.
Deterrence is not only about troops and hardware. It is about credibility and belief. If adversaries perceive hesitation, they probe. If allies perceive uncertainty, they hedge.
This is not an argument that NATO would abandon a member state. It is an inquiry into how signals are interpreted, and this is analytically important because deterrence extends beyond territory. Deterrence is not only about troops and hardware. It is about credibility and belief. If adversaries perceive hesitation, they probe. If allies perceive uncertainty, they hedge.
If Moscow perceives hesitation, gray-zone pressure increases, hybrid operations intensify, and peripheral instability becomes a manageable risk rather than a prohibitive one. If aspirant states perceive doubt, hedging increases, domestic polarization deepens, and reform momentum weakens as the political and military risks of alignment begin to outweigh the perceived security payoff. This is how alliance psychology translates into strategic outcomes. Deterrence erodes not when treaties disappear, but when belief in their unconditional application weakens. The strength of Article 5 has always rested on the conviction that it is not subject to negotiation at the moment of crisis. The credibility question today is whether that conviction remains as solid as it once was.
For countries on Europe’s periphery, debates unfolding within NATO are not abstract policy discussions. transatlantic turbulence, sharper political signaling from Washington, protracted burden-sharing disputes, and moments of strategic ambiguity are closely observed from Tbilisi, Kyiv, Chișinău, Yerevan, and beyond. Even when intended as internal discipline within an alliance, such signals inevitably travel outward.
There are tentative signs that NATO, at least the U.S., is paying more attention to the South Caucasus as a region of strategic importance, even if the Alliance’s overall posture remains cautious. Türkiye is set to host the next NATO Summit in Istanbul, a symbolic reminder that the Alliance’s geographic and political horizons extend beyond the traditional Euro-Atlantic core. NATO’s Deputy Secretary General Radmila Shekerinska visited Azerbaijan in January, reaffirming partnership and advancing an Individually Tailored Partnership Programme to set concrete goals for cooperation, signalling a deeper strategic engagement with both Azerbaijan and Armenia rather than a purely procedural dialogue.
Ironically, as Georgia took risks to become the closest aspirant to full NATO membership and a strategic partner of the United States, other actors in the region looked to Russia as the dominant security provider, underscoring how contested influence persists in the Caucasus.
Ironically, as Georgia took risks to become the closest aspirant to full NATO membership and a strategic partner of the United States, other actors in the region looked to Russia as the dominant security provider, underscoring how contested influence persists in the Caucasus. Now, as NATO’s engagement in the Black Sea and South Caucasus is still shaped by the legacy of that ambivalence, the tables have shifted, and Georgia is crossed out of any pro-Western equation. NATO partnership tools are expanding, yet senior officials still tend to publicly overestimate the effects of bureaucratic relations and downplay concerns about partner states deepening ties with Russia, a stance that risks repeating past oversights if strategic competition is taken seriously only in rhetoric.
The future of Europe’s periphery will, therefore, depend not only on tanks, budgets, or communiqués, but on whether NATO can sustain the conviction that its guarantees are real, durable, and politically nonnegotiable.
In such an environment, peripheral states must navigate a complex calculus. They must weigh the security advantages of aligning with Western institutions against the realities of Russian pressure and the signals sent from within the Alliance itself. If the final destination of unconditional collective defence no longer promises bulletproof certainty, the psychological and strategic foundations of long-term reform and alignment in the Black Sea and South Caucasus regions may weaken just when they are needed most.From the perspective of Georgians who continue to fight politically, institutionally, and socially for a Western trajectory in an uninterrupted wave of nearly 450 consecutive days of protests, the credibility of NATO and Article 5 matters more than rhetoric. Credibility must be demonstrated through consistent signaling, forward presence, political unity, and strategic clarity. For aspirant states, the demanding and risky fight is rational only if the end goal is believable. If the promise of security appears negotiable, the cost of reform increases, and the appeal of accommodation grows. The future of Europe’s periphery will, therefore, depend not only on tanks, budgets, or communiqués, but on whether NATO can sustain the conviction that its guarantees are real, durable, and politically nonnegotiable.