Russian drones and aircraft violated the airspace of seven Allies in September 2025, two of them consulting under Article 4, and NATO answered with Eastern Sentry. The same airspace carries civil traffic, and the navigation interference affecting the region has been traced to Russian territory by an international body.
Written for geopolitical-risk and economic-exposure work: it traces a mechanism, not a market view.
How to read the grades
- Confirmed Documented as having occurred, with sources.
- Plausible exposure A mechanism Vigil assesses as likely; not documented as having occurred.
- Unconfirmed scenario Named because it is worth watching. Not asserted.
A step can never be graded more firmly than the step it depends on: a consequence cannot be better established than its cause. That rule is enforced when this site is built, not applied by hand — a chain that broke it would fail the build rather than publish.
- Trigger
Russian drones and aircraft violate the airspace of several Allies, September 2025
- Affected asset, route or regionConfirmed
The asset is controlled airspace over the eastern flank and the navigation and surveillance systems that make it usable. It is shared: the same volume carries NATO air policing, national air forces and commercial traffic, and the same satellite-navigation signals serve all of them.
Documented as having occurred, with sources.
- Operational disruptionConfirmed
NATO states that in September 2025 Russian drones and planes violated the airspace of several Allies, including Estonia, Finland, Latvia, Lithuania, Norway, Poland and Romania, and that incursions of drones into Polish airspace and of fighter jets into Estonian airspace led to security consultations under Article 4. Separately, an International Telecommunication Union board finding, an ICAO assembly and EU sanctions on an electronic-warfare unit place the sources of satellite-navigation interference affecting the Baltic region in Russian territory.
Documented as having occurred, with sources.
- Exposed sector or commodityPlausible exposure
The exposure is civil aviation's dependence on the same systems: navigation integrity in a region where interference is an established finding, and airspace availability where a military response is under way. Aviation safety bulletins have carried the interference as a regional advisory since 2022 and it has been reissued since, which is a published operational condition rather than an incident.
A mechanism Vigil assesses as likely; not documented as having occurred.
- Broader economic significancePlausible exposure
Air policing is sized for the interception of manned aircraft and operates on a four-month rotation of volunteered fighters. What arrived in September 2025 included uncrewed systems, and NATO's answer was to add assets under a flexible activity rather than to change the standing mission. Whether that is a durable match between the pressure and the response is the open question, and it is not resolved by any public source.
A mechanism Vigil assesses as likely; not documented as having occurred.
Sectors and commodities exposed
Named as plain labels rather than a controlled vocabulary, so this list cannot drift from the commodity names the module's economy section already uses.
What remains unknown
- No incursion count, annual total or year-on-year comparison is carried in this chain, and none may be added to it.
- Scramble and intercept totals measure allied responses, not Russian activity, and are excluded for that reason.
- No civil-aviation cost, delay or diversion figure was established from a primary source this pass.
Readings the evidence also supports
- The September 2025 concentration may represent a change in Russian behaviour, or improved allied detection and publication of behaviour that was already occurring. NATO's statement establishes the violations and the consultations; it does not establish a trend, and this chain does not assert one.
Listed because the record's own assessment is not the only one its sources permit — not as a hedge on the assessment above.
Whether navigation-interference advisories change in scope
Aviation safety bulletins state areas and periods. A change in the area covered is a published, checkable fact; an incident count is not.
Whether air policing's form changes rather than its size
Every adaptation since 2014 has been additive. A change to the rotation, the basing model or the mission's scope would be a change of kind.
Watch questions this chain bears on
Standing analytical questions whose evidence runs through this chain, each with its latest review. Derived from the Watch object, never restated here.
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Assessed as of — 2026-09 Last reviewed — 2026-09-21