Are the Baltic states in danger?

Every serious conversation about European security eventually arrives at the same question. If Russia is capable of launching the largest land war in Europe since 1945, and if the West's response has been — as the evidence suggests — more limited and more hesitant than the prewar deterrence architecture was supposed to produce, what is the credible basis for confidence that the three small NATO democracies on Russia's northwestern flank will be treated differently?

This question deserves a rigorous answer rather than a reflexive one. The reflexive answers come in two flavors equally unhelpful: "It can't happen because Article 5," and "It's inevitable because Putin won't stop." The reality is more complicated, more conditional, and more dependent on decisions being made right now — in Moscow, in Washington, in Tallinn and Riga and Vilnius, and in the capitals that determine NATO's actual functional capacity — than either dismissal or fatalism suggests.

Why the Question Is Being Taken More Seriously Now

The elevated discussion of Baltic vulnerability in 2025 and 2026 is not media hysteria. It reflects a genuine and documented shift in the strategic environment.

The Baltic Defense Initiative, a Vilnius-based think tank, published a detailed scenario study in April 2026 describing how Russia could force Lithuania into capitulation within ninety days without a single soldier crossing the border. The scenario was constructed entirely from verified weapon system capabilities and observed production rates, not hypothetical Russian capabilities. The think tank projected a December 2027 timeline in which a combination of political fragmentation in Western Europe, the continuing drain of the Iran war on American attention and resources, and precision hypersonic strikes on the Lithuanian government and infrastructure creates conditions for effective coercion short of conventional occupation.

The Estonian Foreign Intelligence Service published an assessment stating that Russia is not expected to attack any NATO member state within the next two years — a statement that contains more information in its framing than in its conclusion. "Next two years" is a specific window, not a permanent assurance. And the service's own analysis of what is happening to Russian military positioning around the Baltic region provides context for that estimate that is less reassuring than the headline.

Reports from September and October 2025 documented a string of Russian airspace incursions into Estonia. Three Russian military aircraft violated Estonian airspace in one episode in September, intercepted after twelve minutes by Italian NATO aircraft on Baltic Air Policing duty. In the preceding month, drone intrusions had been recorded over Poland, Romania, Sweden, and Norway's airspace as well. The frequency and geographic scope of these incidents suggest probing behavior rather than accidental navigation errors.

The Military Reality: What Russia Actually Has Available

Any serious assessment of Russian attack capability against the Baltic states must begin with an honest look at what the Russian military actually has available — not at peak theoretical capacity, but in the current depleted state following four-plus years of intensive operations in Ukraine.

Intelligence assessments and analysis of Russian military positioning around the Baltic region indicate that the garrisons directly behind Russia's borders with Estonia, Finland, Latvia, and Lithuania are "mostly empty." The forces that should be stationed in those positions have been deployed to Ukraine. Based on available intelligence, approximately two understrength motorized regiments and some airborne and artillery detachments remain on Russian territory in close proximity to the Baltic region, accompanied by one or two fighter aviation regiments of roughly ninety to one hundred aircraft. This adds up to approximately fifteen thousand ground personnel as an upper bound — and the actual reality is likely significantly more meagre than even this estimate.

RAND wargames conducted in 2014 and 2015 estimated that a large combined-arms mechanized Russian invasion force could reach one or more Baltic capital cities within sixty hours. That estimate was generated before Russia spent four years in a grinding war in Ukraine that exposed severe logistical limitations, officer quality problems, equipment maintenance deficiencies, and combined-arms coordination failures that no professional military analyst would have fully anticipated from the pre-war Russian military posture. The sixty-hour scenario is not credible against the Russia of 2026 in the same way it might have been credible against the Russia of 2021.

This does not mean the threat is zero. It means the character of the most plausible threats has shifted from an overwhelming conventional blitzkrieg toward more graduated, deniable, and politically complex scenarios that are in some ways harder to respond to precisely because they are harder to categorize.

The Scenarios: From Most to Least Likely

Scenario One: Hybrid Pressure Campaign. This is the most likely near-term form of Russian hostile action and the one for which the current Russian military posture is best suited. It involves a sustained combination of cyberattacks against critical infrastructure, drone incursions into airspace to probe and test response times, disinformation operations targeting Russian-speaking minority communities in Estonia and Latvia, economic pressure, and the kind of gray-zone provocations that create political pressure without triggering Article 5.

The Narva scenario is the most discussed specific version of this. Narva is an Estonian city of around fifty thousand people on the Russian border, approximately ninety percent of whose residents are Russian-speaking. It lies directly across a narrow river from Russia. A covert ground incursion by unmarked Russian troops, combined with local proxies and a manufactured political crisis among the Russian-speaking population, mirrors the successful Crimea seizure model more closely than the failed conventional Ukraine operation model. The political question of how NATO would respond to ambiguous aggression designed to make attribution and characterization genuinely uncertain is one that the alliance has not resolved definitively.

Scenario Two: Suwałki Gap Seizure. This is the scenario that keeps European military planners awake. The Suwałki corridor is a roughly one-hundred-kilometer strip of NATO territory between Russia's Kaliningrad exclave and Belarus, connecting Poland to Lithuania. It is the only land route by which NATO could reinforce the Baltic states in the event of a conventional conflict. Two major roads and a single rail line traverse the gap. Any Russian seizure of this corridor would sever Estonia, Latvia, and Lithuania from land reinforcement, potentially isolating all three before NATO could respond at scale.

From Belarus, Russian forces could push through Lithuania toward the Suwałki Gap, closing it before substantial NATO reinforcement could arrive, rather than attacking directly across the Estonian or Latvian borders. This approach has certain operational advantages over a frontal assault — it puts Russian forces on territory that is politically complex, and it severs the logistical lifeline to the states it aims to pressure without necessarily requiring the conquest of their capitals.

This scenario requires Russia to have substantially reconstituted its ground forces from their current depleted state, and it requires a political environment in which Russia calculates that NATO's Article 5 response will be limited enough to make the gamble worthwhile. Neither condition currently holds — but both could develop over a three to seven-year time horizon.

Scenario Three: Full-Scale Conventional Attack. This remains the least likely scenario in any near-term framework, and the assessment of its probability by serious analysts falls in the low single-digit percentage range over the next five years. The Russian military's current operational capacity — with most combat-ready units committed in Ukraine, equipment losses running into the thousands of vehicles, officer casualties at levels that cannot be quickly replaced, and logistical infrastructure under sustained Ukrainian attack — does not support the kind of rapid multi-axis offensive that would be necessary to seize Baltic territory before NATO reinforcement could arrive. Russia is currently fielding a reasonable upper bound of fifteen thousand ground troops near the Baltic region, against which even the Baltic states' own forces, combined with the NATO Enhanced Forward Presence battlegroups and rapid European reinforcement, represent a credible defense.

Arguments Against a Russian Attack

The case against Russian action in the near term rests on several substantial foundations.

The nuclear deterrent remains credible. Whatever one thinks of the current state of the American commitment to Article 5, the UK and France maintain independent nuclear arsenals and have shown no inclination to withdraw their guarantees to European NATO allies. The risk calculus of attacking a NATO member includes the possibility of nuclear escalation — a risk that Russia, despite its rhetorical brandishing of nuclear capabilities, has not shown itself willing to accept.

Russia's military is genuinely degraded. The failure to achieve rapid victory in Ukraine, the documented losses in equipment and personnel, the exposure of logistical and command failures — all of these constitute real constraints on offensive capability that will take years to reconstitute even under favorable conditions. The Russian defense-industrial base is producing equipment at accelerated rates, but producing new equipment takes time and does not immediately replace lost institutional knowledge and trained personnel.

The economic and political costs of another war before the current one ends would be catastrophic. Russia's budget deficit is already at record levels, driven by Ukraine war expenditures. Adding a second front against NATO would require mobilization at a scale that would make the partial mobilization of September 2022 look modest by comparison, with proportionally larger domestic political risks.

European rearmament is proceeding faster than expected. Germany has crossed the three percent of GDP defense spending threshold. Poland is building a defensive network along its eastern border. The Baltic states themselves have substantially increased their own defense spending and force posture. The military calculation that NATO's eastern flank is a soft target has been materially changed, though not yet fully reversed, by this investment.

Arguments For Elevated Risk

The case for taking the threat seriously over a longer time horizon is equally substantial.

The Belfer Center's analysis explicitly identifies the conditions under which Russian action becomes conceivable: if the Ukraine war stabilizes on terms favorable to Moscow, if Putin judges NATO's political cohesion and US resolve in Europe to be brittle, or if Russia achieves increased ability to mobilize and employ conscripts at scale. All three of these conditions are more plausible in 2026 than they were in 2022.

The American security guarantee is visibly weakening. The troop withdrawals from Germany, the Der Spiegel revelations about reduced fighter jet and naval commitments to the NATO Force Model, the "naughty and nice" list of allies based on personal loyalty to the American president rather than strategic importance — all of these reduce the credibility of the deterrent that has kept peace in the Baltic region since 1991. Former US diplomat Donald Jensen described the US withdrawal as portending "a permanent change in that security architecture, the final form of which we don't know yet."

The demographic and social vulnerabilities in Estonia and Latvia are real. Both countries have Russian-speaking minorities ranging from twenty-five to thirty percent of their populations. Russia has shown repeatedly — in Crimea, in eastern Ukraine, in Georgia's South Ossetia — that it can manufacture a "protection of Russian speakers" justification for military action when it decides to act. The presence of vulnerable minority communities is not a cause of Russian aggression but a potential instrument for it.

Russia's behavior since 2022 has demonstrated a willingness to accept costs that Western analysts before the invasion consistently underestimated. The Kremlin's risk tolerance and time horizon differ fundamentally from Western assumptions. A leader who initiated a war that has killed hundreds of thousands of people and devastated his country's economy in pursuit of territorial and ideological objectives is not constrained by the same calculations that govern democratic governments.

What Needs to Be Done: The Preparation Agenda

The Suwałki Gap is the single most urgent physical vulnerability that requires addressing. Germany has committed engineering units to Poland to support the construction of the East Shield defensive network spanning seven hundred kilometers along its borders with Russia and Belarus. Germany activated the 45th Panzer Brigade in Lithuania. Poland launched the two-and-a-half-billion-dollar East Shield construction program in November 2024. These investments need to be completed on schedule and supplemented with pre-positioned heavy equipment that can be rapidly moved to defend the corridor.

NATO's Enhanced Forward Presence battlegroups in each Baltic state need to be upgraded in scale. The current battalion-sized formations are a tripwire — large enough to ensure that any Russian attack involves killing NATO soldiers, but too small to actually defend territory. Moving toward brigade-sized formations in each country, as several Baltic governments have requested, would provide genuine defense-in-depth rather than a symbolic presence.

Civilian resilience infrastructure — backup power grids, distributed water systems, communications redundancy, civil defense protocols — is as important as military hardware in the hybrid scenario that represents the most immediate threat. The Baltic Defense Initiative's scenario for Lithuanian capitulation without a soldier crossing the border relied primarily on infrastructure destruction through missile strikes and drone saturation. The most cost-effective investments to defeat this scenario are not military but civil.

Intelligence sharing and hybrid threat detection need to be institutionalized at the European level rather than remaining dependent on American provision. The current over-reliance on US intelligence and surveillance assets means that any American disengagement — of the kind now visibly underway — degrades European warning capability at exactly the moment when the warning capability is most needed.

The Probability Assessment

Assembling all of this into an honest probability estimate requires acknowledging the limits of forecasting in strategic affairs. With that caveat, the current consensus of serious analysts working from publicly available data and institutional assessments suggests approximately the following.

A full-scale conventional Russian attack on the Baltic states within the next two years: approximately three to five percent probability. The military capability and political preconditions are not currently aligned, and the Estonian Foreign Intelligence Service's "not expected" assessment over this window reflects genuine intelligence that the Russian military posture near the Baltic region does not support near-term offensive operations.

A significant hybrid or gray-zone incident — Narva-type provocation, substantial cyberattack, coordinated political destabilization — within the next three years: significantly higher, perhaps thirty to forty percent. This is the zone in which Russian capability and appetite most clearly align with current conditions.

Conventional military action in a five to ten-year horizon, contingent on Russian military reconstitution and continued erosion of American commitment to NATO, is not negligible. Analysts working from the Suwałki Gap scenario assess this as a planning assumption rather than a remote contingency. The Belfer Center's February 2026 analysis describes a major conventional offensive aimed at isolating the Baltic states as "conceivable" — not inevitable, not imminent, but requiring serious military planning precisely because the conditions that would make it attractive to Moscow are conditions that could plausibly develop.

The most important variable in this entire equation is one over which the Baltic states themselves have limited control: the future of American commitment to Article 5. If that commitment is genuine and credible, the probability of any Russian military action falls sharply because the expected costs become prohibitive. If that commitment erodes — as the current trajectory of American foreign policy suggests it is eroding — the expected costs for Moscow decline proportionally. The Kremlin watches this as carefully as any institution in the world. The signals it has received in 2025 and 2026 from Washington are not the signals that maximize deterrence.

That is not a cause for paralysis. It is cause for the Europeans — including the Baltic states, Poland, Germany, the Nordic countries, and the broader European defense community — to continue doing precisely what they are doing: treating the possibility seriously, building genuine capability, closing the Suwałki Gap vulnerability, and constructing deterrence that does not depend entirely on American resolve remaining constant. The history of the past four years suggests that betting everything on American constancy is not a sufficient security strategy.