The NATO Summit and the defence of the European geopolitical space

 Europe 2030: Anticipating the Unthinkable and Guaranteeing Peace

Victor Ângelo 

International Security Advisor. 

Former UN Under-Secretary-General

Published on: 10 Jul 2026

The NATO Summit in Ankara has made it impossible to continue ignoring the possibility of a Russian aggression against the European space by the end of the decade. It has become a strategic hypothesis that demands preparation, deterrence, and political will. Europe faces a concrete threat and must build a genuine, coordinated, and maximally autonomous Defence capability. Ankara also confirmed a second self-evident truth: the support of the United States, whilst indispensable, can no longer be treated as an automatic guarantee.

European States must correct an error of judgement: interpreting Moscow as if the Kremlin calculated its actions according to a rational economic logic of costs and benefits. This is not the case. Its strategic vision is shaped by other forces: regime survival, historical resentment towards the West, an obsession with a lost sphere of influence, and the need to project strength to prevent any perception of weakness.

That is why the continuation and intensification of the Russian war against Ukraine increase the European risk. This crisis, triggered by the Kremlin, must end without further delay. As Kyiv demonstrates the capacity to strike critical infrastructure within Russia, the vulnerability of Vladimir Putin's power becomes more visible. These attacks erode an autocracy centred on a single face, whose authority depends on internal repression and the appearance of external invincibility. The greater danger is that the Kremlin, should it feel backed into a corner, might seek to regain the initiative through an escalation against NATO countries, pressuring the West to yield and attempting to force Ukraine into capitulation.

This threat would not be a massive territorial invasion in the image of the wars of the 20th century. The technological context has changed the nature of aggression and reduced the time available for decision-making. The risk may arise from surgical, localized operations of great political impact. Russia possesses missile systems, including hypersonics, capable of striking infrastructure in Western Europe in a matter of minutes. Under a logic of controlled escalation, a precision strike against a port, a power station, a communications hub, or a military base would not necessarily mean the onset of a total war. It could suffice to paralyse the Alliance's political decision-making. Every missile would also be a coercive message.

In parallel, the aggression could take the form of rapid operations in vulnerable points: Svalbard, in northern Norway, essential for monitoring the Arctic; Gotland, in Sweden, decisive for controlling the Baltic Sea; or the Suwałki Gap, between Poland and Lithuania, squeezed between Kaliningrad and Belarus. A lightning occupation, albeit limited in space and time, would have a clear objective: to sever access, create faits accomplis, and force NATO to choose between responding, negotiating, or hesitating.

The target would be allied cohesion. If Russia were to advance and NATO were to hesitate, Article 5 would not disappear from paper, but it would lose political substance. The Alliance would continue to exist; however, it would be left with diminished credibility. And an alliance that no longer intimidates the aggressor approaches the old Chinese image, taken up by Mao, of a paper tiger.

The transition to a sort of “NATO 3.0”, in which Europe will have to assume a much greater share of its own Defence, creates a period of critical vulnerability. The summit made it clear that Europe cannot organize its security on the assumption of a constant, predictable, and politically unconditional American presence.

Furthermore: any American insistence on territorial claims or control over Greenland – a topic once again stirred up by Donald Trump in Ankara – would introduce severe tension into the heart of the Alliance. Moscow would tend to interpret a transatlantic fracture of this nature as an opportunity to test NATO's solidity, exploit divisions, and accelerate its operations in the grey zone.

In my preceding article – “NATO and the trap of red lines”, of 3 July 2026 – I emphasized that one of the most dangerous responses would be to announce “red lines”. Linear thinking fails in the face of hybrid warfare and the manoeuvres that take place in the twilight of the grey zone. By proclaiming absolute ultimatums, the Alliance would risk being pushed into an escalation it does not desire or, worse still, exposing its hesitations. What is required is strategic ambiguity: genuine military capabilities, demonstrable readiness, and response options sufficiently unpredictable to render the adversary's calculations more difficult. Europe must invest in a coordinated manner in its Armed Forces and, simultaneously, preserve the language and practice of peace.

Recognizing that Russian aggression is a real possibility on the 2030 horizon is not alarmism. It is strategic prudence. European rearmament should not be presented as a march towards confrontation, but as a condition for avoiding it. When one's neighbour is a power that transforms history into imperial claims and force into a diplomatic argument, peace comes at a high price. But the price of unpreparedness would be incomparably higher. It is this that must be explained to citizens, without euphemisms or useless dramatizations.

Deterrence and defence do not substitute diplomacy; they lend it weight. A fragile Europe may suggest the opening of a dialogue, but it will hardly be heard. A strong, coherent, and autonomous Europe can propose to Moscow a credible, sustained negotiation, oriented towards stability. Dialogue with Russia will always be sterile if conducted from a position of dependence, division, or fear.

Preparing for the unthinkable does not mean desiring war. It means preventing others from considering it advantageous. To guarantee peace – and this remains the paramount objective –, Europe must be ready to respond to scenarios that until recently seemed inconceivable. Peace depends on the credibility of our resolve.