Russian forces repurpose "tsar train" as defensive line

Russian forces have reportedly repurposed a "tsar train" as a defensive line against Ukrainian assaults, located four miles from the front line. The train, made from stolen railcars, is seen as an obstacle to Ukrainian advances. Ukraine's troops are exhausted, and Russia has made territorial gains, including seizing Marinka and advancing on Avdiivka. Ukrainian forces are reinforcing the city amid shortages. Previous attempts to regain territory were exhausted by Russian defenses.