On September 11, 2025, NATO declared intentions to enhance the defense of Europe's eastern flank following an incident in which Poland shot down drones that had entered its airspace. This marked the first known drone airspace violation involving a member of the Western alliance during the ongoing war in Ukraine. The United States described the airspace violations as alarming and pledged to defend every inch of NATO territory. These remarks came amid efforts to reassure NATO allies after President Donald Trump's earlier suggestion that Russia's drone incursion might have been a mistake. Poland portrayed the drone incursions as a test by Russia of NATO’s capabilities and response mechanisms.

On September 11, 2025, NATO declared intentions to enhance the defense of Europe's eastern flank following an incident in which Poland shot down drones that had entered its airspace. This marked the first known drone airspace violation involving a member of the Western alliance during the ongoing war in Ukraine. The United States described the airspace violations as alarming and pledged to defend every inch of NATO territory. These remarks came amid efforts to reassure NATO allies after President Donald Trump's earlier suggestion that Russia's drone incursion might have been a mistake. Poland portrayed the drone incursions as a test by Russia of NATO’s capabilities and response mechanisms.