- Lead. Poland’s prime minister told parliament on September 17 that Russia is planning drone and missile strikes on eastern NATO states that will be publicly framed as accidents, based on intelligence from NATO, US and Ukrainian agencies.
- Fact. Tusk cited a recent precedent: roughly 20 Russian drones entered Polish airspace across the eastern border a year ago, forcing NATO jet scrambles and prompting an Article 4 consultation.
- Stake. Moscow’s calculated ambiguity strategy—striking then claiming error—is designed to expose Article 5 as a theoretical commitment rather than a genuine deterrent, paralysing the alliance without triggering collective defence.
The Warning From Warsaw
Speaking to the Sejm on September 17, Prime Minister Donald Tusk delivered one of his most direct warnings about Russian intentions since taking office. According to intelligence gathered by NATO, the United States and Ukraine, Russia’s plan “also includes hybrid drone and missile strikes against countries supporting Ukraine, including Poland,” Tusk said. The aim is to strike, then present the attacks as accidental or misrouted, eroding public confidence in NATO’s collective-defence guarantee without triggering a formal Article 5 response.
Tusk did not identify specific operations, but said the threat is grounded in a verified pattern. He referenced a previous incident in which approximately 20 Russian drones entered Polish airspace across the eastern border, forcing NATO scrambles and prompting Poland to invoke Article 4 for the first time. Moscow characterised those incursions as navigation errors—a framing Tusk now says is deliberate doctrine rather than coincidence.
The strategic logic follows what security analysts call the accidental-war template: a series of plausibly deniable incidents that individually fall below the threshold for collective response but collectively demonstrate that Article 5 will not fire automatically. “Russia intends to paralyse NATO by showing that Article 5 exists only in theory,” Tusk warned.
Hybrid Precedents and Eastern Flank Anxiety
Warsaw’s warning follows months of incidents on NATO’s eastern flank attributed to Russian interference. Earlier in September, the German government blamed Russian operatives for an attempted drone strike near a major NATO logistics hub. Lithuania and Estonia have also reported unexplained drone incursions in recent months. Russia’s Foreign Ministry has labelled these allegations “contrived and far-fetched.”
Russia’s Nikolai Patrushev had previously warned Poland directly, claiming Warsaw would face existential risk if it entered the conflict—a statement Polish officials read as deterrence through intimidation. Tusk’s September 17 address represents Poland’s counter-framing: rather than being deterred from supporting Ukraine, Warsaw is preparing its population and defences for a phase of direct, if deniable, hybrid pressure.
In practical terms, Poland has begun installing 28 new bomb shelters and expanding air-defence systems at eastern border crossings. Tusk also confirmed plans to meet President Volodymyr Zelensky to coordinate joint air-defence coverage, an arrangement that would allow Polish and Ukrainian systems to share radar data along the border zone.
Article 5 at the Centre of the Debate
The broader significance of Tusk’s remarks lies in the credibility test they describe. If Russia can deliver strikes that each appear accidental, the political cost of invoking collective defence may exceed the political will to do so. That calculation—that NATO’s formal guarantees are more fragile than they appear—sits at the heart of the Kremlin’s hybrid approach.
Poland, as the alliance member with the longest border touching both Russia’s Kaliningrad exclave and Belarus, has consistently argued for a more pre-emptive eastern posture. Tusk’s address suggests Warsaw now has intelligence to back that case, and is willing to make it publicly. According to Notes from Poland, Tusk stressed that “there is nothing to suggest an invasion,” but framed the coming period as “a real test” of Poland’s readiness as one of Ukraine’s most committed allies.
How NATO members respond—and whether allied intelligence agencies validate Tusk’s warnings publicly—may determine whether this remains a bilateral Polish concern or becomes a formal alliance priority at the next NATO council session.