<p>Poland accused Russian forces of violating its airspace with hostile drones overnight in the course of conducting attacks on Ukrainian targets, and it activated Article 4 of NATO’s treaty.</p>

Poland described the violation of its airspace as an act of aggression, but it has not said whether it believes the violations were deliberate.{ai:summary}<p>Poland says Russian forces violated its airspace with hostile drones during attacks on Ukrainian targets and activated NATO Article 4. #foreignaffairs</p>

What to know as Poland invokes NATO Article 4 over Russian drones

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