"Russia Constructs 30-Km 'Tsar Train' Defensive Barrier in Eastern Ukraine"

Russian forces in Ukraine's Donetsk region have constructed a 20-mile-long barrier made up of 2,100 freight carriages, dubbed the "tsar train," as a defensive line against Ukrainian forces. Satellite imagery from May 2023 and February 2024 shows the structure linking the towns of Olenivka and Volnovakha, close to the front lines. The barrier is seen as a challenging obstacle for Ukrainian troops and may have been built to deter future assaults. The area near the barrier has seen heavy fighting, with recent clashes reported by both Ukrainian and Russian forces.