In the shadow of a high-level diplomatic mission, a Russian drone struck a train engine at Yahodyn, near the Ukraine-Poland border, minutes after Boris Johnson and senior European security officials had passed through the same corridor. No lives were lost — evacuation protocols had already cleared the passengers — yet the precision and timing of the strike carried a message that transcended the physical damage. It is a reminder that in modern conflict, infrastructure is both battlefield and symbol, and that the margins between diplomacy and danger have grown perilously thin.