Danish defence intelligence published its starkest assessment yet on Thursday: Russia could launch long-range strikes on NATO infrastructure supporting Ukraine, or carry out a limited incursion into a neighbouring country using troops without insignia, within months. The report explicitly names the mechanism — Moscow testing whether NATO's Article 5 commitment holds when the US under Trump may be unwilling to back European allies. Hours before the Danish report dropped, a Starlink satellite station in Poland's Masovian voivodeship was set ablaze in what Deputy Prime Minister Krzysztof Gawkowski called deliberate sabotage. The fire disrupted internet access for institutions including the Ukrainian military. Gawkowski stopped short of naming Russia but said the attack aligned with Moscow's doctrine of hybrid warfare. The station is operational again. The Danish assessment sits within a broader pattern. Germany publicly blamed Russia for an attempted drone attack on Leipzig/Halle airport earlier this month. Fires at drone factories, rail sabotage, and cyber intrusions across Europe have been investigated for Kremlin links. Russia denies involvement in all cases. A source familiar with Moscow's thinking told the Guardian that Russian military command believes NATO countries are directly involved in guiding Ukrainian missiles and drones, and considers itself justified in responding in kind. The strategic logic is clear: force European governments to divert resources from Ukraine support and fracture NATO cohesion if the alliance cannot agree on collective responses. Denmark warns of "destructive cyber-attacks that cripple societal functions" and "sabotage attacks that carry a high risk of casualties" in the coming months. The escalation ladder has explicit rungs. NATO's internal fault lines are already visible. Slovakia's Prime Minister Robert Fico last week publicly questioned his country's commitment to Article 5, saying he did not want Slovakia drawn into conflict "because of some article 5." This is precisely the fracture Moscow is probing for — the gap between treaty text and political will. The Danish service maintains it remains "highly unlikely" that Russia would launch a full invasion of a NATO country, but notably added it "cannot be ruled out." The distinction matters: the assessed threat is not conventional war but grey-zone operations designed to fall just below the threshold that triggers collective defence — little green men, deniable sabotage, long-range strikes on logistics nodes. Zelenskyy warned at the UN General Assembly that Russia threatens Moldova, Poland, and the Baltic states, showing "no respect" for sovereignty across the south Caucasus and central Asia. The twenty-year question is whether NATO's deterrence architecture survives a sustained campaign of sub-threshold attacks that no single incident justifies a collective military response to, but whose cumulative effect degrades the alliance's credibility and cohesion.
