Poland invoked Article 4 of the North Atlantic Treaty on Wednesday after fighter jets shot down multiple Russian drones that illegally entered Polish airspace. Russia, which has been at war with Ukraine along Poland’s southeastern border,

Ukraine is not a member of NATO, though the international security alliance has been a key player in its ongoing conflict with Russia, which escalated to a full-scale invasion by Russian forces Thursday. Since the United States helped form NATO, or the ...

WOHYN, Poland (AP) — Multiple Russian drones crossed into Poland in what European officials described Wednesday as a deliberate provocation, causing NATO to send fighter jets to shoot them down. A NATO spokesman said it was the first time the alliance confronted a potential threat in its airspace.