The NATO military alliance, led by Europe, said it was bolstering its defenses on its eastern flank following a tension-raising Russian drone incursion into Polish airspace.

The alliance’s supreme commander in Europe said a new operation, dubbed Eastern Sentry, will add equipment from France, Denmark, Germany and the U.K. to its existing air and ground-based defe...

NATO announced plans to beef up the defense of Europe's eastern flank on Friday, two days after Poland shot down drones that had violated its airspace in the first known action of its kind by a member of the Western alliance during Russia's war in Ukraine. Warsaw has portrayed the…

BRUSSELS/WARSAW >> NATO announced plans to beef up the defense of Europe’s eastern flank today, two days after Poland shot down drones that had violated its airspace in the first known action of its kind by a member of the Western alliance during Russia’s war in Ukraine.

Warsaw has portrayed the drone incursions as an attempt by Russia to test the capabilities of Poland and NATO to respond.

There is a real danger of the Ukraine war spilling over into NATO territory, says international security professor Stefan Wolff.