Reports that Ukrainian drone operators wiped out two NATO battalions sound dramatic, but the Estonian exercise revealed something far more important — not defeat, but how quickly warfare is changing and how slowly large armies adapt. Large-scale manoeuvres Hedgehog-2025 were conducted in Estonia with the participation of more than 16,000 soldiers from 12 NATO countries. The scenarios were intended to reflect a „crowded and contested” battlefield, where information pressure and speed of decision-