When people imagine a war between Russia and NATO, they tend to imagine the wrong thing. Tanks pouring through the Suwałki Gap. Russian missiles striking bases in Germany. American aircraft fighting Russian fighters over the Baltic. Perhaps, eventually, nuclear escalation. It is an understandable picture because it resembles the wars we know how to think about: one side attacks, the other side responds, and eventually somebody wins or loses.
But that may obscure the more interesting strategic problem. Russia does not necessarily have to defeat NATO in a conventional war to achieve an enormously important geopolitical victory. It may not even want such a war. A much cheaper and potentially safer strategy would be to steadily weaken the political cohesion on which NATO’s military power ultimately depends.
The distinction matters because NATO is an unusual military organization. Its strength doesn’t principally come from the armies of Estonia, Lithuania, Latvia or even Poland. It comes from the promise that attacking one of those countries means acquiring all the others as enemies. Article 5 of the North Atlantic Treaty turns dozens of separate national militaries into something approximating a single deterrent because an adversary must assume that aggression against one member could eventually bring American, British, French, German, Polish and other forces into the conflict.
That means NATO has an extraordinary amount of military power but also a potential political vulnerability. The entire arrangement depends upon adversaries believing that the members will act together when the moment comes.
Russia therefore faces two very different strategic questions. The first is: Can Russia defeat NATO? The answer would involve armies, aircraft, logistics, industrial production and eventually nuclear weapons. It is an extraordinarily dangerous proposition.
The second question is subtler: Can Russia make NATO members doubt one another?
That is a much more interesting question.
NATO itself increasingly describes Russian activity in these terms. At a September 19 meeting of NATO military chiefs in Copenhagen, Military Committee chairman Admiral Giuseppe Cavo Dragone described recent airspace violations, drone incidents and hybrid activities as attempts to “test Allied resolve.” He also said Russian investment in what NATO calls cognitive warfare is intended to undermine trust and weaken Alliance unity. That is NATO’s interpretation of Russian behavior rather than an independently provable window into Kremlin decision-making, but it is revealing of the problem Alliance planners believe they face.
The European Union has reached a similar assessment. It says Russian-linked hybrid activity since the invasion of Ukraine has included sabotage, cyberattacks, interference operations, disruption of infrastructure and information manipulation, and describes the broader campaign as seeking to destabilize European states and undermine support for Ukraine. Recent EU statements have specifically characterized these actions as attempts to produce fear and distrust within European societies. Moscow has repeatedly rejected accusations that it is waging such a hybrid campaign.
This is where the concept of the “gray zone” becomes important. A conventional invasion produces clarity. If Russian armored units crossed the Polish border tomorrow morning, there would not be much philosophical debate about whether Poland had been attacked. NATO governments would still have enormous decisions to make, but identifying the event would not be particularly difficult.
Hybrid confrontation is almost the opposite. Its strategic usefulness often comes from uncertainty.
A telecommunications cable mysteriously breaks. A railway system experiences a cyberattack. A warehouse supplying Ukraine catches fire. GPS signals disappear over part of the Baltic. An unidentified drone crosses a border. A Russian aircraft briefly enters NATO airspace. A ship behaves aggressively toward another country’s military aircraft. A political information campaign amplifies an existing domestic disagreement.
None of those events looks like the beginning of World War III.
That is precisely the point.
A 2026 CSIS analysis describes Europe as occupying a gray zone between peace and war in which Russian cyber and information operations can erode European cohesion while staying below the threshold that would reliably provoke a conventional military response. Whether every suspected incident is attributable to Moscow is a separate evidentiary question, and attribution is often one of the central difficulties. But strategically, ambiguity itself can be useful.
Consider the difference between destroying a NATO military unit and creating an argument among NATO governments.
Destroying the unit requires weapons, exposes the attacker to retaliation and produces an obvious victim. Creating the argument can be dramatically cheaper. If Poland believes an incident was deliberate while another NATO government calls for further investigation, Russia has learned something about Alliance decision-making. If one government demands retaliation while another fears escalation, the political disagreement becomes almost as important as whatever physical damage occurred.
That suggests a different way of thinking about Russian probing around NATO’s borders.
The objective does not necessarily have to be territorial gain. The objective may be information.
How quickly does NATO respond?
Which governments hesitate?
What level of provocation produces a coordinated response?
What level produces arguments?
How much uncertainty is necessary before public opinion begins opposing escalation?
What happens if an incident kills nobody? What happens if it kills one person? What happens if Moscow says it was accidental? What happens if responsibility cannot immediately be established?
These are questions that can potentially be explored without ever ordering an armored division across a NATO border.
And that is why a hypothetical Russian attack on the Baltic states would make more strategic sense as the culmination of such a process than as its beginning.
Imagine that years of increasingly aggressive probing had convinced Moscow that NATO was politically brittle. Perhaps governments repeatedly argued about attribution. Perhaps American leaders signaled reluctance to become involved in small European confrontations. Perhaps European publics increasingly concluded that incidents around the Baltic were not worth risking a larger war. Perhaps NATO responses consistently arrived late enough that Russia developed confidence it could create a fait accompli before the Alliance made a decision.
Only then does something like the Suwałki Gap become truly tempting.
The military objective might still be limited: sever the land connection between Poland and the Baltic states, seize some territory or manufacture some supposed security crisis involving Kaliningrad. But the strategic objective would be much larger.
Russia would be asking NATO the most important question NATO can ever be asked:
Do you really mean it?
Suppose Russian forces occupied a small amount of Lithuanian territory and immediately stopped. Moscow announces that it has no intention of proceeding farther. It proposes negotiations. It warns that any NATO attack on Russian forces could produce catastrophic escalation. It perhaps puts nuclear forces on heightened alert for emphasis.
Suddenly NATO’s overwhelming aggregate military superiority becomes almost secondary.
The real battle takes place in Washington, Berlin, Paris, Warsaw, London, Rome, Ankara and the other Allied capitals.
Is recovering that territory worth a European war?
Is it worth risking Russian missile attacks?
Is it worth losing thousands of soldiers?
Is it worth even a small possibility of nuclear escalation?
That is the Russian victory condition that deserves more attention.
Not Russian tanks reaching Paris.
Not the conquest of Poland.
Not recreating the Soviet Union.
Rather, a situation in which NATO possesses the military capability to reverse Russian aggression but cannot assemble the political will to use it.
If that happened once, the consequences would extend far beyond whichever patch of territory was originally contested. Estonia would immediately have to reconsider what NATO protection actually meant. So would Latvia and Lithuania. Poland would begin making decisions on the assumption that collective defense might fail. Finland and Sweden would reconsider their security calculations. Countries farther west would confront the same uncomfortable question from the opposite direction: if the guarantee failed once, what exactly were they obligated to risk the next time?
Article 5 would still exist on paper.
But deterrence operates primarily in people’s heads.
Once adversaries ceased believing in it, NATO could possess thousands of aircraft, tanks, ships and nuclear weapons while being strategically weaker than it had been before the crisis.
That helps explain why NATO leaders react so strongly even to incidents that appear militarily minor. NATO Secretary General Mark Rutte said this month that Russia wants to divide the Alliance and reduce its support for Ukraine; NATO’s public position is that the response should therefore be solidarity rather than reciprocal hesitation. Again, this is NATO’s stated assessment of Russian intent, not neutral proof of every alleged Russian operation. But it illustrates how Alliance leaders understand the contest: unity itself has become part of the battlefield.
There is an irony here. If weakening NATO is indeed an important Russian goal, many Russian actions since 2022 have produced the opposite short-term result. Finland and Sweden joined NATO. European defense budgets have increased substantially. NATO has reinforced its eastern flank. Germany is permanently stationing an armored brigade in Lithuania. The Alliance has expanded its planning for infrastructure resilience, cyberattacks, hybrid warfare and rapid reinforcement.
This doesn’t mean the political strategy has disappeared. It means the contest has become recursive.
Russia probes NATO cohesion.
NATO responds by demonstrating cohesion.
Russia observes that response and adjusts.
NATO changes its defenses again.
The danger is that both sides can gradually climb an escalation ladder while believing they are merely signaling.
And that brings us to the deepest problem with the idea that Russia might want to weaken NATO rather than fight it: a strategy designed to avoid war can accidentally produce one.
Gray-zone operations work because they hover near boundaries. But boundaries are not always visible. One country’s warning is another country’s provocation. One military sees a drone approaching critical infrastructure and shoots it down. Another military interprets the shootdown as escalation. A cyberattack unexpectedly shuts down a hospital. A missile that was supposedly intended for Ukraine lands several kilometers inside NATO territory. Soldiers die.
Suddenly governments are making decisions that neither side expected them to make.
This may be the central paradox of NATO-Russia relations in the coming years. Moscow has strong reasons not to fight NATO directly. NATO has equally strong reasons to avoid a war with Russia. Yet precisely because outright war is so unattractive, competition gets pushed into the ambiguous territory immediately below it.
That territory is becoming crowded.
Sabotage. Cyber operations. Drones. Electronic warfare. Airspace incursions. Information operations. Infrastructure incidents. Maritime confrontations. Political intimidation.
The temptation is to look at each one individually and conclude that it isn’t serious enough to matter.
But perhaps that is the wrong unit of analysis.
The strategic question isn’t necessarily whether Russia can win any particular confrontation.
It is whether, after enough confrontations, NATO becomes a little slower, a little more divided and a little less certain that its members will take enormous risks for one another.
Because the greatest Russian victory over NATO would not require defeating a single American division.
It would occur the moment Russia became convinced that it didn’t have to.
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