Just after midnight, at least 19 Russian attack drones sliced into Polish airspace amid a mass strike on Ukraine.

Polish F-16s, backed by allied NATO jets, scrambled and engaged , shooting down three, possibly four, drones over Polish territory as debris fell well beyond the border belt. Multiple drones and debris were discovered hundreds of miles away from Ukraine, on which Russia has launched withering drone attacks in recent weeks.

By morning, Poland and NATO had determined it was not, as Moscow now claims, an accident.

Warsaw has now invoked NATO’s Article 4 for alliance consultations, with the Secretary General confirming allied air defenses were activated to protect Poland.

What is Article Four?

Article 4 consultations are NATO’s formal mechanism for a member state to bring up

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