NATO is preparing one of its largest military reorganizations since the end of the Cold War, with plans for a new high-tech defensive system along its eastern flank aimed at countering potential Russian aggression, Germany’s Bild newspaper reports.

The initiative is not focused on building traditional barriers such as walls or fences. Instead, the planned system would rely on a network of advanced technologies, including sensors, drones, satellites and artificial intelligence designed to detect and respond to threats before they turn into a direct attack.

According to Bild, documents related to the project, known as the Eastern Flank Deterrence Initiative (EFDI), clearly identify Russia as the potential adversary the defensive measures are intended to address.

The purpose of the initiative is to prevent an attack before it begins by making clear that NATO’s eastern border can no longer be targeted through surprise action. The concept is based not only on the ability to respond after an attack, but on detecting and countering possible threats at an earlier stage.

The need for additional protection has grown after Finland joined NATO, extending the alliance’s border with Russia by around 1,340 kilometers. The eastern flank, stretching from the Baltic region to Romania, has become a much larger area requiring coordinated defense planning.