Two days after an unprecedented drone incursion by Russia on Polish territory on September 10, NATO unveiled its response: Operation Eastern Sentry. NATO says Eastern Sentry is about strengthening its defense posture, connectivity, and flexibility along its entire eastern flank. It was made clear, however, that it will only be in NATO territory, meaning there are no plans to enter western Ukraine to protect the skies. Allies Step UpEight countries have already joined Eastern Sentry and placed assets at the disposal of NATO's supreme allied commander (SACEUR), Alexus Grynkewich. As Grynkewich put it when pressed by the media after unveiling Eastern Sentry: "It's time to take a fresh look at this.