Russia’s violation of Poland’s airspace with drones on Wednesday marks the most serious cross-border incident into a NATO member country since the war began.

NATO fighter jets shot down multiple Russian drones that violated Polish airspace during an attack on neighboring Ukraine early on Wednesday, as the military alliance denounced Moscow for “absolutely dangerous” behavior that ratcheted up tensions to a new level.

ANTALYA, Turkey (AP) — NATO foreign ministers on Thursday debated an American demand to massively ramp up defense investment as the United States focuses on security challenges outside of Europe. At talks in Antalya, Turkey, NATO Secretary-General Mark ...

In the years since Russia invaded Ukraine, NATO has focused on defending its own territory first and resisted lower-level harassment from Russia, like acts of sabotage and intimidation