DN Opinion
The Russian siege and Europe's response
Victor Ângelo
International Security Advisor. Former UN Under-Secretary-General
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Published on: 25 Sep 2026, Diário de Notícias, Lisboa, Portugal
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The recent Duma elections were well staged. They confirmed the internal control exercised by the regime, the decision to continue the illegal war against Ukraine, and Vladimir Putin's structural policy against Europe, which has gradually evolved from occasional provocations to a strategy of persistent and calculated pressure.
Moscow operates on several complementary fronts: sabotage, cyberattacks, electronic signal jamming, the instrumentalization of migrants, propaganda, military intimidation, and support for extremist and pro-Russian political forces. The purpose is not to immediately destroy Western capabilities—not for lack of will, but through strategic calculation. In reality, it is about testing and exposing the political frailties of democratic Europe, with actions surgically below the threshold of NATO's Article 5. The authorship of these actions is systematically denied, exploiting the inherent slowness of democracies in gathering evidence and making decisions. Putin is an expert at transforming political doubt into an instrument of equivocation and at fostering fractures among allied nations.
This pressure materializes on coordinated fronts that many insist on treating as isolated incidents. From Kaliningrad and other unidentified locations, satellite navigation disruptions are already a recurrent issue, affecting aviation and maritime navigation across a vast swath between Poland and Scandinavia. In terms of sabotage, the damage to submarine telecommunication cables in the Baltic Sea since 2024 is now compounded by the threat in the Arctic, where a Russian military unit has reportedly studied ways to disable the region's cables. On the land borders, the migratory instrument orchestrated via Belarus has adapted: in response to the physical barriers erected in Poland, the pressure has shifted towards Lithuania and Latvia through new tactics.
Often treated in isolation by certain political sectors and parts of public opinion, the war of aggression against Ukraine is not a parallel conflict: it is the most brutal manifestation of this very same strategy. There are those who still fail to grasp this connection, viewing support for Kyiv as a mere gesture of solidarity or an obligation that is difficult to justify—a tragic misreading. While on the rest of the continent Moscow operates in the grey zone to avoid collective retaliation, in Ukraine it resorts to direct military force to achieve the same end: to subjugate democracies and unilaterally redraw European security. Support for Ukraine must therefore be unequivocally integrated into the broader framework of defending democratic Europe. Ukraine is our first trench.
Europe's vulnerability, however, is predominantly political and internal. The Kremlin finds Trojan horses within the very heart of the European system: certain extremist parties and movements. Whether through submission, ideological convergence, or financing, or through anti-Americanism or xenophobic repudiation of European integration, these forces ultimately serve Moscow's objectives. By normalizing the Russian narrative, attacking NATO, hindering aid to Kyiv, and sowing scepticism towards European institutions, these extremes amplify the hybrid war.
The European response is dangerously asymmetrical. On the eastern and Nordic flank, the response to the threat is already State doctrine: Finland has integrated hybrid analysis into its comprehensive defence, Estonia is investing in digital resilience, and Warsaw and Vilnius are preparing for escalation scenarios. In Western and Southern Europe, the awakening has been delayed. Although there are shifts in perception and policy in Berlin, Paris, London, Rome, and even Brussels, the response remains too slow, bureaucratic, and fragmented.
This delay reveals a certain incomprehension of the autocratic vision of the regime led by Vladimir Putin. The risk encompasses all of Europe outside the Russian orbit, from the Ukrainian front and the Baltic region to the North Atlantic. Anyone in Lisbon or other European capitals who deems Russia to be distant and their country safe from hybrid attacks demonstrates an embarrassingly naive attitude. In a multidimensional war, traditional geography is no longer a shield. To underestimate this reach is to directly imperil Portuguese critical infrastructure—most notably the Atlantic submarine cables, ports, airports, and energy networks. It is to forget that these connections, if sabotaged, will affect not only our country but a significant part of the West.
This vulnerability is currently exacerbated by the uncertainty surrounding the American commitment. The political distance between Europe and the US continues to widen. They are two perspectives seemingly in the process of divorce. The announced review of the US posture in Europe, involving troop reductions and greater conventional responsibility for allies, has its justifications and will ultimately strengthen European autonomy, but it requires a realistic timetable. The Kremlin is well aware of Western deterrence's reliance on the credibility of its guarantor, and it exploits any hesitation to intensify the pressure.
Russia takes advantage of our difficulty in operating within this intermediate zone between peace and war. It no longer limits itself to testing our degree of tolerance; the signals it sends us should be a cause for concern. It will most likely not act against our part of Europe in the same way it has in Ukraine since 2014, with the occupation of Crimea and the war in the Donbas, and since 2022, with the full-scale invasion. Putin recognizes that an attack on a NATO member could trigger the collective response provisioned in Article 5 and that clandestine actions, including false-flag operations, complicate the unequivocal attribution of responsibility. His political leadership prefers clandestine actions, typical of secret services, agencies in which Putin places a higher degree of trust than in the armed forces. The time has thus come for democratic Europe to abandon its old naivety, grow up, and take its rightful place at the table of international relations: Diplomacy and Defence.
