A continent already on edge over the Ukraine war sees a Russian challenge to NATO readiness and to an America that wants to disengage from Europe.

Poland shot down drones that entered its airspace Wednesday, marking the first known instance of a NATO member firing weapons during Russia's war in...

Poland denounced what it has described as an incursion by more than a dozen Russian drones. It would not be the first time Russia’s war effort had spilled beyond Ukraine.